@article{PPN235181684_0212+dmdlog30,
title = {Some Maximal Closed Classes of Operations on Infinite Sets.},
journal = {Mathematische Annalen},
volume = {212},
year = {1974},
pages = {157-164},
zbl = {0281.08001},
url = {http://dml.mathdoc.fr/item/PPN235181684_0212+dmdlog30}
}
Rosenberg, I.G. Some Maximal Closed Classes of Operations on Infinite Sets.. Mathematische Annalen, Tome 212 (1974) pp. 157-164. http://gdmltest.u-ga.fr/item/PPN235181684_0212+dmdlog30/