Sullo, Elaine. “Open Access Papers Have a Greater Citation Advantage in the Author-Pays Model Compared to Toll Access Papers in Springer and Elsevier Open Access Journals”. Evidence Based Library and Information Practice 11, no. 1 (March 15, 2016): 60–62. Accessed September 21, 2024. https://journals.library.ualberta.ca/eblip/index.php/EBLIP/article/view/26054.