Eiichi Bannai, Stuart G. Hoggar. Tight t-Designs and Squarefree Integers. Eur. J. Comb., 10(2):113-135, 1989. [doi]
@article{BannaiH89,
title = {Tight t-Designs and Squarefree Integers},
author = {Eiichi Bannai and Stuart G. Hoggar},
year = {1989},
doi = {10.1016/S0195-6698(89)80040-X},
url = {http://dx.doi.org/10.1016/S0195-6698(89)80040-X},
researchr = {https://researchr.org/publication/BannaiH89},
cites = {0},
citedby = {0},
journal = {Eur. J. Comb.},
volume = {10},
number = {2},
pages = {113-135},
}