José Luis Ortega

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

Alberto Martín-Martín, E. Orduña-Malea, Emilio Delgado López-Cózar, 2023, J. Assoc. Inf. Sci. Technol..

ESTUDIOS / RESEARCH STUDIES Influence of different journal publishing models in the presence and detection of scientific errors and misconduct

Lorena Delgado-Quirós, José Luis Ortega, 2023 .