@article{VMUMM_1994_2_a11,
     author = {A. K. Rybnikov},
     title = {On the geometry of a second-order evolution equation},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {79--85},
     publisher = {mathdoc},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1994_2_a11/}
}