@article{AM2_1978__17_136755,
     author = {P. Erd\"os and B. Richmond},
     title = {On partitions of {N} into summands coprime to {N.} {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {382--382},
     year = {1978},
     volume = {17},
     zbl = {0401.10057},
     url = {http://geodesic.mathdoc.fr/item/AM2_1978__17_136755/}
}