@article{GDZPPN002354381,
title = {On a conjecture of G. Bol.},
journal = {Mathematica Scandinavica},
volume = {40},
year = {1977},
pages = {194-196},
zbl = {0373.53002},
url = {http://dml.mathdoc.fr/item/GDZPPN002354381}
}
Fabricius-Bjerre, Fr. On a conjecture of G. Bol.. Mathematica Scandinavica, Tome 40 (1977) pp. 194-196. http://gdmltest.u-ga.fr/item/GDZPPN002354381/