@article{1195523381,
author = {Chikawa, Kazuo and Is\'eki, Kiyoshi},
title = {Unsolved problems of number theory. Steinhaus problem},
journal = {Proc. Japan Acad.},
volume = {38},
number = {10},
year = {1962},
language = {en},
url = {http://dml.mathdoc.fr/item/1195523381}
}
Chikawa, Kazuo; Iséki, Kiyoshi. Unsolved problems of number theory. Steinhaus problem. Proc. Japan Acad., Tome 38 (1962) no. 10, . http://gdmltest.u-ga.fr/item/1195523381/