@misc{VMUMM_1991_5_a20,
     title = {Scientific-research seminar of the elasticity theory chair (sessions of the autumn and spring semesters of the 1989/90 academic year)},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {93--94},
     publisher = {mathdoc},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1991_5_a20/}
}