+@item @url{http://crypto.stanford.edu/~dabo/cryptobook/, A Graduate Course in Applied Cryptography}
+@item @url{http://www.cs.unibo.it/babaoglu/courses/security/resources/documents/intro-to-crypto.pdf, An introduction to cryptography}
+@item @url{http://pqcrypto.org/index.html, Post-quantum cryptography}
+@item @url{https://media.ccc.de/v/31c3_-_6369_-_en_-_saal_1_-_201412272145_-_ecchacks_-_djb_-_tanja_lange, Gentle introduction to elliptic-curve cryptography}
+@item @url{https://bib.gnunet.org/full/date.html, GNUnet Bibliography}
+@item @url{https://bada55.cr.yp.to/, BADA55 Crypto}