@article{RM_2000_55_6_a14,
     author = {K. A. Mirzoev},
     title = {On a class of operators connected with second-order differential equations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1159--1160},
     publisher = {mathdoc},
     volume = {55},
     number = {6},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2000_55_6_a14/}
}