@article{GDZPPN002343096,
title = {Problem 4 (Vol. l (1953), p. 310)},
journal = {Mathematica Scandinavica},
volume = {2},
year = {1954},
pages = {159-159},
url = {http://dml.mathdoc.fr/item/GDZPPN002343096}
}
FUGLEDE, BENT. Problem 4 (Vol. l (1953), p. 310). Mathematica Scandinavica, Tome 2 (1954) p. 159. http://gdmltest.u-ga.fr/item/GDZPPN002343096/