Google Scholar Metrics 2014: a low cost bibliometric tool. - Alberto Martín-Martín; Juan Manuel Ayllon; Enrique Orduña-Malea; Emilio Delgado López-Cózar (CoRR, 2014)

Does Google Scholar contain all highly cited documents (1950-2013)? - Alberto Martín-Martín; Enrique Orduña-Malea; Juan Manuel Ayllon; Emilio Delgado López-Cózar (CoRR, 2014)

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; Enrique Orduña-Malea; Juan Manuel Ayllon; Emilio Delgado López-Cózar (CoRR, 2014)

Empirical Evidences in Citation-Based Search Engines: Is Microsoft Academic Search dead? - Enrique Orduña-Malea; Juan Manuel Ayllon; Alberto Martín-Martín; Emilio Delgado López-Cózar (CoRR, 2014)

About the size of Google Scholar: playing the numbers. - Enrique Orduña-Malea; Juan Manuel Ayllon; Alberto Martín-Martín; Emilio Delgado López-Cózar (CoRR, 2014)

The silent fading of an academic search engine: the case of Microsoft Academic Search. - Enrique Orduña-Malea; Alberto Martín-Martín; Juan Manuel Ayllon; Emilio Delgado López-Cózar (Online Inf. Rev., 2014)

Reviving the past: the growth of citations to old documents. - Alberto Martín-Martín; Enrique Orduña-Malea; Juan Manuel Ayllon; Emilio Delgado López-Cózar (CoRR, 2015)

Improvements in Google Scholar Citations are for the summer: creating an institutional affiliation link feature. - Enrique Orduña-Malea; Juan Manuel Ayllon; Alberto Martín-Martín; Emilio Delgado López-Cózar (CoRR, 2015)

Nature's top 100 Re-revisited. - Alberto Martín-Martín; Juan Manuel Ayllon; Emilio Delgado López-Cózar; Enrique Orduña-Malea (J. Assoc. Inf. Sci. Technol., 2015)

Methods for estimating the size of Google Scholar. - Enrique Orduña-Malea; Juan Manuel Ayllon; Alberto Martín-Martín; Emilio Delgado López-Cózar (Scientometrics, 2015)

Proceedings Scholar Metrics: H Index of proceedings on Computer Science, Electrical & Electronic Engineering, and Communications according to Google Scholar Metrics (2010-2014). - Alberto Martín-Martín; Juan Manuel Ayllón; Enrique Orduña-Malea; Emilio Delgado López-Cózar (CoRR, 2016)

2016 Google Scholar Metrics released: a matter of languages... and something else. - Alberto Martín-Martín; Juan Manuel Ayllón; Enrique Orduña-Malea; Emilio Delgado López-Cózar (CoRR, 2016)

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; Enrique Orduña-Malea; Juan Manuel Ayllon; Emilio Delgado López-Cózar (CoRR, 2016)

A two-sided academic landscape: portrait of highly-cited documents in Google Scholar (1950-2013). - Alberto Martín-Martín; Enrique Orduña-Malea; Juan Manuel Ayllón; Emilio Delgado López-Cózar (CoRR, 2016)

Back to the past: on the shoulders of an academic search engine giant. - Alberto Martín-Martín; Enrique Orduña-Malea; Juan Manuel Ayllón; Emilio Delgado López-Cózar (Scientometrics, 2016)

The lost academic home: institutional affiliation links in Google Scholar Citations. - Enrique Orduña-Malea; Juan Manuel Ayllon; Alberto Martín-Martín; Emilio Delgado López-Cózar (Online Inf. Rev., 2017)

Google Scholar: the 'big data' bibliographic tool. - Emilio Delgado López-Cózar; Enrique Orduña-Malea; Alberto Martín-Martín; Juan Manuel Ayllon (CoRR, 2018)