Yann Renoux
- Biography of the mathematician interested in statistical arbitrage, optimal execution, and transaction cost modeling.
- http://homepages.nyu.edu/~yr366/

Radulescu, Vicentiu
- Nonlinear Analysis, Mathematical Physics and Variational Calculus.
- http://www.inf.ucv.ro/~radulescu/

Ramzan, Zulfikar
- Cryptography and Information Security.
- http://theory.lcs.mit.edu/~zulfikar/homepage.html