@article{GDZPPN002344483,
title = {Solution of problem 15 (Vol. 3 (1955), p. 306)},
journal = {Mathematica Scandinavica},
volume = {4},
year = {1956},
pages = {174-176},
url = {http://dml.mathdoc.fr/item/GDZPPN002344483}
}
FABRICIUS-BJERRE, FR. Solution of problem 15 (Vol. 3 (1955), p. 306). Mathematica Scandinavica, Tome 4 (1956) pp. 174-176. http://gdmltest.u-ga.fr/item/GDZPPN002344483/