@article{SM_1998_189_6_a3,
     author = {V. P. Maslov and A. S. Mishchenko},
     title = {Quasi-classical asymptotics of quasi-particles},
     journal = {Sbornik. Mathematics},
     pages = {901--930},
     publisher = {mathdoc},
     volume = {189},
     number = {6},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1998_189_6_a3/}
}