Two Attacks on Reduced IDEA. - Johan Borst; Lars R. Knudsen; Vincent Rijmen (EUROCRYPT, 1997)

Linear Cryptanalysis of RC5 and RC6. - Johan Borst; Bart Preneel; Joos Vandewalle (FSE, 1999)

Cryptography on smart cards. - Johan Borst; Bart Preneel; Vincent Rijmen (Comput. Networks, 2001)