@article{1181073162,
author = {Dekker, J.C.E.},
title = {Counting finite subsets of an immune set},
journal = {Rocky Mountain J. Math.},
volume = {20},
number = {4},
year = {1990},
pages = { 99-106},
language = {en},
url = {http://dml.mathdoc.fr/item/1181073162}
}
Dekker, J.C.E. Counting finite subsets of an immune set. Rocky Mountain J. Math., Tome 20 (1990) no. 4, pp. 99-106. http://gdmltest.u-ga.fr/item/1181073162/