Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1967_6_4_a8, author = {N. S. Romanovskii}, title = {Maximal subrings of the field $Q$ and maximal subgroups of the}, journal = {Algebra i logika}, pages = {75--82}, publisher = {mathdoc}, volume = {6}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1967_6_4_a8/} }
N. S. Romanovskii. Maximal subrings of the field $Q$ and maximal subgroups of the. Algebra i logika, Tome 6 (1967) no. 4, pp. 75-82. http://geodesic.mathdoc.fr/item/AL_1967_6_4_a8/