@article{SM_1984_49_2_a8,
     author = {S. P. Mishchenko},
     title = {The {Engel} identity and its application},
     journal = {Sbornik. Mathematics},
     pages = {419--426},
     publisher = {mathdoc},
     volume = {49},
     number = {2},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1984_49_2_a8/}
}