Find below a list of some Reference managers to help in citations and bibliography
European center for the development of vocational training
Google Scholar helps you follow related research for key author and stand on the shoulder of giants
High-Energy Physics Literature Database
Turn even the largest set of documents into a fully searchable, easy-to-manage library. Read and annotate content via desktop client, browser or mobile app. Citation and bibliography creation is easy with thousands of styles to choose from.
Microsoft Academic semantic search provides you with highly relevant search results from continually refreshed and extensive academic content from over 120 million publications
Science.gov searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results.
SSRN is devoted to the rapid worldwide dissemination of research and is composed of a number of specialized research networks.
WorldCat connects you to the collections and services of more than 10,000 libraries worldwide