Lars R. Knudsen Florian Mendel Christian Rechberger Søren S. Thomsen Cryptanalysis of MDC-2. 106-120 2009 EUROCRYPT http://dx.doi.org/10.1007/978-3-642-01001-9_6 conf/eurocrypt/2009 db/conf/eurocrypt/eurocrypt2009.html#KnudsenMRT09