@article{GDZPPN002037874,
title = {On a problem of A.D. Sands.},
journal = {Aequationes mathematicae},
volume = {38},
year = {1989},
pages = {186-191},
zbl = {0685.20023},
url = {http://dml.mathdoc.fr/item/GDZPPN002037874}
}
Szabó, Sándor. On a problem of A.D. Sands.. Aequationes mathematicae, Tome 38 (1989) pp. 186-191. http://gdmltest.u-ga.fr/item/GDZPPN002037874/