Let's Encrypt: An Automated Certificate Authority to Encrypt the Entire Web. - Josh Aas; Richard Barnes 001; Benton Case; Zakir Durumeric; Peter Eckersley; Alan Flores-López; J. Alex Halderman; Jacob Hoffman-Andrews; James Kasten; Eric Rescorla; Seth D. Schoen; Brad Warren (CCS, 2019)

Developing a Practical Approach to Change. - Brad Warren (Coll. Res. Libr., 2020)