F. Jessie MacWilliams. Binary codes which are ideals in the group algebra of an abelian group. Bell Syst. Tech. J., 49(6):987-1011, 1970. [doi]
@article{MacWilliams70,
title = {Binary codes which are ideals in the group algebra of an abelian group},
author = {F. Jessie MacWilliams},
year = {1970},
doi = {10.1002/j.1538-7305.1970.tb01812.x},
url = {https://doi.org/10.1002/j.1538-7305.1970.tb01812.x},
researchr = {https://researchr.org/publication/MacWilliams70},
cites = {0},
citedby = {0},
journal = {Bell Syst. Tech. J.},
volume = {49},
number = {6},
pages = {987-1011},
}