@article{VMUMM_2004_2_a7,
     author = {L. A. Maksimova},
     title = {Isotropy conditions in the generalized variables},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {40--44},
     year = {2004},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2004_2_a7/}
}