Michael Bertilsson Ernest F. Brickell Ingemar Ingemarsson Cryptanalysis of Video Encryption Based on Space-Filling Curves. 403-411 http://link.springer.de/link/service/series/0558/bibs/0434/04340403.htm 1989 EUROCRYPT db/conf/eurocrypt/eurocrypt89.html#BertilssonBI89