@article{1200757525,
author = {Nobusawa, Nobuo},
title = {On symmetric structure of a finite set},
journal = {Osaka J. Math.},
volume = {11},
number = {1},
year = {1974},
pages = { 569-575},
language = {en},
url = {http://dml.mathdoc.fr/item/1200757525}
}
Nobusawa, Nobuo. On symmetric structure of a finite set. Osaka J. Math., Tome 11 (1974) no. 1, pp. 569-575. http://gdmltest.u-ga.fr/item/1200757525/