Fred Piper, Michael Walker. Linear Ciphers and Spreads. J. Cryptology, 1(3):185-188, 1989.
@article{PiperW89,
title = {Linear Ciphers and Spreads},
author = {Fred Piper and Michael Walker},
year = {1989},
researchr = {https://researchr.org/publication/PiperW89},
cites = {0},
citedby = {0},
journal = {J. Cryptology},
volume = {1},
number = {3},
pages = {185-188},
}