Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1979_18_4_a4, author = {V. M. Kopytov}, title = {Free lattice-ordered groups}, journal = {Algebra i logika}, pages = {426--441}, publisher = {mathdoc}, volume = {18}, number = {4}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1979_18_4_a4/} }
V. M. Kopytov. Free lattice-ordered groups. Algebra i logika, Tome 18 (1979) no. 4, pp. 426-441. http://geodesic.mathdoc.fr/item/AL_1979_18_4_a4/