@article{DAN_1995_345_1_a12,
     author = {K. Ya. Kondrat'ev and L. S. Ivlev and I. Galindo},
     title = {An application of the notion of the enhanced factor for studying
},
     journal = {Doklady Akademii Nauk},
     pages = {111--113},
     publisher = {mathdoc},
     volume = {345},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_345_1_a12/}
}