@article{02161284, title = {P\'olya's permanent problem.}, journal = {The Electronic Journal of Combinatorics [electronic only]}, volume = {11}, year = {2004}, zbl = {1062.05066}, language = {en}, url = {http://dml.mathdoc.fr/item/02161284} }
McCuaig, William. Pólya's permanent problem.. The Electronic Journal of Combinatorics [electronic only], Tome 11 (2004) . http://gdmltest.u-ga.fr/item/02161284/