Alberto Martín-Martín

Most-cited papers

1. Google Scholar, Web of Science, and Scopus: a systematic comparison of citations in 252 subject categories

   Alberto Martín-Martín, E. Orduña-Malea, M. Thelwall, Emilio Delgado López-Cózar

   2018J. Informetrics1,878 citations Open access

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2. Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison

   Alberto Martín-Martín, E. Orduña-Malea, E. Delgado López-Cózar

   2018Scientometrics229 citations Open access

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3. Can we use Google Scholar to identify highly-cited documents?

   Alberto Martín-Martín, E. Orduña-Malea, Anne-Wil Harzing, Emilio Delgado López-Cózar

   2017J. Informetrics164 citations Open access

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4. Methods for estimating the size of Google Scholar

   E. Orduña-Malea, J. M. Ayllón, Alberto Martín-Martín, E. Delgado López-Cózar

   2014Scientometrics157 citations Open access

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5. Evidence of Open Access of scientific publications in Google Scholar: a large-scale analysis

   Alberto Martín-Martín, R. Costas, T. V. Leeuwen, Emilio Delgado López-Cózar

   2018J. Informetrics142 citations Open access

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6. Google Scholar as a data source for research assessment

   Emilio Delgado López-Cózar, E. Orduña-Malea, Alberto Martín-Martín

   2018Springer Handbook of Science and Technology Indicators128 citations Open access

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7. The counting house: measuring those who count. Presence of Bibliometrics, Scientometrics, Informetrics, Webometrics and Altmetrics in the Google Scholar Citations, ResearcherID, ResearchGate, Mendeley & Twitter

   Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, Emilio Delgado López-Cózar

   2016arXiv.org94 citations

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8. Do ResearchGate Scores create ghost academic reputations?

   E. Orduña-Malea, Alberto Martín-Martín, M. Thelwall, E. Delgado López-Cózar

   2017Scientometrics89 citations Open access

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9. Google Scholar as a source for scholarly evaluation: A bibliographic review of database errors

   E. Orduña-Malea, Alberto Martín-Martín, Emilio Delgado López-Cózar

   201758 citations Open access

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10. Author-level metrics in the new academic profile platforms: The online behaviour of the Bibliometrics community

    Alberto Martín-Martín, E. Orduña-Malea, Emilio Delgado López-Cózar

    2018J. Informetrics50 citations Open access

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11. Google Scholar, Web of Science, and Scopus: which is best for me?

    Alberto Martín-Martín, E. Orduña-Malea, M. Thelwall, E. Delgado López-Cózar

    201940 citations

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12. Empirical Evidences in Citation-Based Search Engines: Is Microsoft Academic Search dead?

    E. Orduña-Malea, Alberto Martín-Martín, J. M. Ayllón, Emilio Delgado López-Cózar

    2014Online information review (Print)40 citations Open access

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13. Does Google Scholar contain all highly cited documents (1950-2013)?

    Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, Emilio Delgado López-Cózar

    2014arXiv.org40 citations

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14. A novel method for depicting academic disciplines through Google Scholar Citations: The case of Bibliometrics

    Alberto Martín-Martín, E. Orduña-Malea, E. Delgado López-Cózar

    2017Scientometrics37 citations Open access

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15. The next bibliometrics: ALMetrics (Author Level Metrics) and the multiple faces of author impact

    E. Orduña-Malea, Alberto Martín-Martín, Emilio Delgado López-Cózar

    201637 citations Open access

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16. Back to the past: on the shoulders of an academic search engine giant

    Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, E. Delgado López-Cózar

    2016Scientometrics31 citations Open access

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17. Optimized One vs One Approach in Multiclass Classification for Early Alzheimer’s Disease and Mild Cognitive Impairment Diagnosis

    C. Jiménez-Mesa, I. Illán, Alberto Martín-Martín, D. Castillo-Barnes +3 more

    2020IEEE Access29 citations Open access

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18. Índice H de las revistas científicas españolas según Google Scholar Metrics (2007-2011)

    Juan Manuel Ayllón Millán, Alberto Martín-Martín, E. Orduña-Malea, R. Ruiz-Pérez +1 more

    201328 citations

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19. A two-sided academic landscape: portrait of highly-cited documents in Google Scholar (1950-2013)

    Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, Emilio Delgado López-Cózar

    2016arXiv.org23 citations Open access

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20. An introduction to the coverage of the Data Citation Index (Thomson-Reuters): disciplines, document types and repositories

    Daniel Torres-Salinas, Alberto Martín-Martín, Enrique Fuente-Gutiérrez

    2013arXiv.org23 citations Open access

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21. Google Scholar: the 'big data' bibliographic tool

    Emilio Delgado López-Cózar, E. Orduña-Malea, Alberto Martín-Martín, J. M. Ayllón

    2018arXiv.org20 citations Open access

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22. The lost academic home: institutional affiliation links in Google Scholar Citations

    E. Orduña-Malea, J. M. Ayllón, Alberto Martín-Martín, Emilio Delgado López-Cózar

    2017Online information review (Print)18 citations Open access

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23. Why are these publications missing? Uncovering the reasons behind the exclusion of documents in free‐access scholarly databases

    Lorena Delgado-Quirós, Isidro F. Aguillo, Alberto Martín-Martín, Emilio Delgado López-Cózar +2 more

    2023J. Assoc. Inf. Sci. Technol.17 citations Open access

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24. A two-sided academic landscape : snapshot of highly-cited documents in Google Scholar ( 1950-2013 )

    Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, Emilio Delgado López-Cózar

    201616 citations

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25. Métricas en perfiles académicos: ¿un nuevo juego adictivo para los investigadores?

    E. Orduña-Malea, Alberto Martín-Martín, Emilio Delgado López-Cózar

    2016Revista Española de Salud Pública15 citations

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26. Correction to: Google Scholar, Microsoft Academic, Scopus, Dimensions, Web of Science, and OpenCitations’ COCI: a multidisciplinary comparison of coverage via citations

    Alberto Martín-Martín, M. Thelwall, E. Orduña-Malea, Emilio Delgado López-Cózar

    2020Scientometrics14 citations Open access

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27. Google Scholar Metrics 2014: a low cost bibliometric tool

    Alberto Martín-Martín, J. M. Ayllón, E. Orduña-Malea, Emilio Delgado López-Cózar

    2014arXiv.org13 citations

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28. The role of ego in academic profile services: comparing Google scholar, ResearchGate, Mendeley, and ResearcherID

    Alberto Martín-Martín, E. Orduña-Malea, Emilio Delgado López-Cózar

    20169 citations Open access

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29. Classic papers: using Google Scholar to detect the highly-cited documents

    E. Orduña-Malea, Alberto Martín-Martín, Emilio Delgado López-Cózar

    20188 citations Open access

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30. Reviving the past: the growth of citations to old documents

    Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, Emilio Delgado López-Cózar

    20158 citations

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31. Unbundling Open Access dimensions: a conceptual discussion to reduce terminology inconsistencies

    Alberto Martín-Martín, R. Costas, T. V. van Leeuwen, Emilio Delgado López-Cózar

    2018arXiv.org7 citations Open access

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32. Google Scholar and the gray literature: A reply to Bonato's review

    E. Orduña-Malea, Alberto Martín-Martín, Emilio Delgado López-Cózar

    2017arXiv.org6 citations

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33. Apagón digital de la producción científica española en "Google Scholar"

    Emilio Delgado López-Cózar, Alberto Martín-Martín

    20185 citations Open access

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34. 2016 Google Scholar Metrics released: a matter of languages... and something else

    Alberto Martín-Martín, J. M. Ayllón, E. Orduña-Malea, Emilio Delgado López-Cózar

    2016arXiv.org5 citations Open access

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35. Nature's top 100 Re‐revisited

    Alberto Martín-Martín, J. M. Ayllón, E. Delgado López-Cózar, E. Orduña-Malea

    2015J. Assoc. Inf. Sci. Technol.4 citations Open access

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36. Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2009-2013)

    Alberto Martín-Martín, E. Orduña-Malea, J. M. Ayllón, Emilio Delgado López-Cózar

    2014arXiv.org4 citations

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37. Estudios bibliotecológicos e informativos en Iberoamérica: análisis desde la producción científica

    Luis Ernesto Paz Enrique, Alberto Martín-Martín, E. Hernández-Alfonso

    2025Investigación Bibliotecológica Archivonomía Bibliotecología e Información3 citations Open access

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38. Dataset: sources of free full text found by Google Scholar for documents in Web of Science published in 2009 and 2014 (raw and aggregated)

    Alberto Martín-Martín, R. Costas, T. V. Leeuwen, Emilio Delgado López-Cózar

    20183 citations

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39. Journal Scholar Metrics: building an Arts, Humanities, and Social Sciences journal ranking with Google Scholar data

    Alberto Martín-Martín, E. Orduña-Malea, Emilio Delgado López-Cózar

    20173 citations Open access

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40. La cobertura de los índices de citas abiertos se acerca a la de Web of Science y Scopus

    Alberto Martín-Martín

    2021Anuario ThinkEPI2 citations Open access

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41. Scholar Mirrors: Integrating evidence of impact from multiple sources into one platform to expedite researcher evaluation

    Alberto Martín-Martín, E. Orduña-Malea, Emilio Delgado López-Cózar

    20182 citations Open access

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42. Classic papers: déjà vu, a step further in the bibliometric exploitation of Google Scholar

    Emilio Delgado López-Cózar, Alberto Martín-Martín, E. Orduña-Malea

    2017arXiv.org2 citations Open access

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43. Aplicaciones métricas de Google Scholar para la evaluación del impacto científico

    Enrique Orduña-Malea, Juan Manuel Ayllon, Alberto Martín-Martín, Emilio Delgado López-Cózar

    20152 citations

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44. Are Latin-American repositories invisible on Google and Google Scholar?

    E. Orduña-Malea, Alberto Martín-Martín, J. M. Ayllón, Emilio Delgado López-Cózar

    20142 citations

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45. The World Bank’s policy reports in Google Scholar. Are they visible, cited, and downloaded?

    Alberto Martín-Martín, Juan Manuel Ayllón Millán, E. Orduña-Malea, Emilio Delgado López-Cózar

    20142 citations

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46. H index of Sports Science Journals according to Google Scholar Metrics (2013-2017)

    Emilio Delgado López-Cózar, Alberto Martín-Martín

    20181 citations

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47. Citations to Google Scholar's Classic Papers (2017 edition)

    Alberto Martín-Martín, E. Orduña-Malea, M. Thelwall, Emilio Delgado López-Cózar

    20181 citations

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48. Data and code for: Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison

    Alberto Martín-Martín, E. Orduña-Malea, Emilio Delgado López-Cózar

    20181 citations

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49. How many academic documents are visible and freely available on the Web

    E. Orduña-Malea, Juan Manuel Ayllón Millán, Alberto Martín-Martín, Emilio Delgado López-Cózar

    20141 citations

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50. Configuración del campo de los estudios bibliotecológicos e informativos en Iberoamérica: habitus y capitales en la producción científica

    Luis Ernesto Paz Enrique, Alberto Martín-Martín, E. Hernández-Alfonso

    2026Bibliotecas0 citations Open access

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