Efficient Long-Term Validation of Digital Signatures. - Arne Ansper; Ahto Buldas; Meelis Roos; Jan Willemson (Public Key Cryptography, 2001)

Undeniable Replies for Database Queries. - Meelis Roos; Ahto Buldas; Jan Willemson (BalticDB&IS, 2002)

Formal Analysis of the Estonian Mobile-ID Protocol. - Peeter Laud; Meelis Roos (NordSec, 2009)