@article{GDZPPN00234310X, title = {Problem 2 (Vol. l (1953), p. 171)}, journal = {Mathematica Scandinavica}, volume = {2}, year = {1954}, pages = {160-160}, url = {http://dml.mathdoc.fr/item/GDZPPN00234310X} }
FENCHEL, WERNER. Problem 2 (Vol. l (1953), p. 171). Mathematica Scandinavica, Tome 2 (1954) p. 160. http://gdmltest.u-ga.fr/item/GDZPPN00234310X/