Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1974_13_4_a1, author = {Yu. L. Ershov}, title = {Maximal and everywhere defined functionals}, journal = {Algebra i logika}, pages = {374--397}, publisher = {mathdoc}, volume = {13}, number = {4}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1974_13_4_a1/} }
Yu. L. Ershov. Maximal and everywhere defined functionals. Algebra i logika, Tome 13 (1974) no. 4, pp. 374-397. http://geodesic.mathdoc.fr/item/AL_1974_13_4_a1/