@article{VMUMM_2004_1_a2,
     author = {Yu. V. Bychenkov and E. V. Chizhonkov},
     title = {Solution of irregular saddle point problems},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {17--20},
     year = {2004},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2004_1_a2/}
}