MTH 423: Cryptography

zbMATH Open (formerly known as Zentralblatt MATH) is the world's most comprehensive and longest-running abstracting and reviewing service in pure and applied mathematics. It is edited by the European Mathematical Society (EMS), the Heidelberg Academy of Sciences and Humanities, and FIZ Karlsruhe.

From Cornell Unviersity, "arXiv is an e-print service in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance and statistics."

The European Digital Mathematics Library (EuDML) makes the European mathematics literature available online in the form of an enduring digital collection.

Project Euclid is jointly managed by Cornell University Library and Duke University Press. It was originally created to provide a platform for small scholarly publishers of mathematics and statistics journals to move from print to electronic format.

Open textbooks that have been approved by the American Institute of Mathematics.

Hosted by the American Mathematical Society, this "bibliographic index of publications in statistics, probability, and related fields. It includes data from approximately 160 core journals, 1,200 additional journals in related fields, and 11,000 books. The bulk of the content in CIS is from 1975-2017."

A collection of hundred of math books that are now no longer subject to copyright rules. The scanning project contains many rare and phsycially brittle texts that are now freely accessible to all.

A french open access portal featuring full text of research publications in mathematics: journal articles, proceedings of seminars and conferences, books, theses. Most are from 2000 - present.