Description: Connected Papers is a free academic search tool that helps researchers discover new connections between published research papers. It analyzes the text of a researcher's paper to find related papers and visualizes the connections in an interactive graph.
Type: software
Description: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.
Type: software
Pricing: Free