Alternative ways to retrieved articles from the internet

(1) http://sci-hub.org/

Step 1 : Copy the URL of the article

Step 2 : Paste URL, DOI, etc & press ENTER or click the arrow

You will be directed to the article.

(2) http://libgen.org/

(3) http://bookzz.org/

(4) google scholar, researchgate, mendeley, etc.