Mendeley
Used by 5 peoplemendeley.com ↗

“Reference management is another key part of academic work, and I use Mendeley for that.”
Milena Popova Interview, Activist, PhD researcher (consent in fan fiction) · via Uses This 
“For my management of citations and bibliography, I use Mendeley, which is a really good free program that can work with both Word and LaTeX.”
Samuel Arbesman Interview, Writer, complexity scientist · via Uses This 
“I have recently started using Mendeley to manage my collection of academic books and papers.”
John MacFarlane Interview, Philosophy professor, developer (pandoc, gitit) · via Uses This