Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1987__28_4_a10, author = {H\'ajek, Petr}, title = {Partial conservativity revisited}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {679--690}, publisher = {mathdoc}, volume = {28}, number = {4}, year = {1987}, mrnumber = {928683}, zbl = {0679.03025}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1987__28_4_a10/} }
Hájek, Petr. Partial conservativity revisited. Commentationes Mathematicae Universitatis Carolinae, Tome 28 (1987) no. 4, pp. 679-690. http://geodesic.mathdoc.fr/item/CMUC_1987__28_4_a10/