@article{GDZPPN002022303, title = {On Rota's Problem Concerning Partitions. (Short Communication).}, journal = {Aequationes mathematicae}, volume = {1}, year = {1968}, pages = {206-206}, zbl = {0162.03005}, url = {http://dml.mathdoc.fr/item/GDZPPN002022303} }
Mullin, R.C. On Rota's Problem Concerning Partitions. (Short Communication).. Aequationes mathematicae, Tome 1 (1968) p. 206. http://gdmltest.u-ga.fr/item/GDZPPN002022303/