Hi,
I think Scholar is a good option, may it be best if we use Scholar button (https://addons.mozilla.org/en-us/firefox/addon/google-scholar-button/ ; https://chrome.google.com/webstore/detail/google-scholar-button/ldipcbpaocek...), looking for the paper title. We can use DOAJ (www.doaj.org) if we are looking for quality open access papers (not in predatory journals)
Jesús -- "Investigación básica es lo que hago cuando no sé lo que estoy haciendo." "Basic research is what I am doing when I don't know what I am doing." Wernher von Braun (1957)
--#------------------------------------------------------------ Ph.D. Dr. Jesús Tramullas http://tramullas.com Dept. Ciencias Documentación // Library & Information Science Dep. Universidad de Zaragoza 50009 Zaragoza (España) -----------------------------------------------------------#--