@article{TM_1980_152_a0,
     author = {S. S. Ryshkov},
     title = {Editor's preface},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {3--4},
     publisher = {mathdoc},
     volume = {152},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1980_152_a0/}
}