@article{RM_1978_33_5_a1,
     author = {O. A. Oleinik and E. V. Radkevich},
     title = {The method of~introducing a~parameter in~the~study~of~evolutionary
},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {7--84},
     publisher = {mathdoc},
     volume = {33},
     number = {5},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1978_33_5_a1/}
}