Sustainability of open access citation advantage: the case of Elsevier's author-pays hybrid open access journals. - Hajar Sotudeh; Zohreh Estakhr (Scientometrics, 2018)

The cost-effectiveness of the article-processing-charge-funded model across countries in different scientific blocks: the case of Elsevier's hybrid open access journals. - Zohreh Estakhr; Hajar Sotudeh; Javad Abbaspour (Inf. Res., 2021)