Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{PMFA_1975__20_5_a4, author = {Frei, V\'aclav}, title = {O osmn\'act\'em {Hilbertov\v{e}} probl\'emu}, journal = {Pokroky matematiky, fyziky a astronomie}, pages = {260--268}, publisher = {mathdoc}, volume = {20}, number = {5}, year = {1975}, mrnumber = {0493705}, zbl = {0314.50007}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/PMFA_1975__20_5_a4/} }
Frei, Václav. O osmnáctém Hilbertově problému. Pokroky matematiky, fyziky a astronomie, Tome 20 (1975) no. 5, pp. 260-268. http://geodesic.mathdoc.fr/item/PMFA_1975__20_5_a4/