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@article{AM2_1968__1_135964, author = {R.C. Mullin}, title = {On {Rota's} {Problem} {Concerning} {Partitions.} {(Short} {Communication).}}, journal = {Aequationes mathematicae}, pages = {206--206}, publisher = {mathdoc}, volume = {1}, year = {1968}, zbl = {0162.03005}, url = {http://geodesic.mathdoc.fr/item/AM2_1968__1_135964/} }
R.C. Mullin. On Rota's Problem Concerning Partitions. (Short Communication).. Aequationes mathematicae, Tome 1 (1968), p. 206. http://geodesic.mathdoc.fr/item/AM2_1968__1_135964/