@article{urn:eudml:doc:43444,
title = {Problema curioso.},
journal = {Gaceta Matem\'atica},
volume = {23},
year = {1971},
pages = {90-91},
language = {es},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:43444}
}
Segura, S. Problema curioso.. Gaceta Matemática, Tome 23 (1971) pp. 90-91. http://gdmltest.u-ga.fr/item/urn:eudml:doc:43444/