@article{MZM_1997_62_6_a16,
     author = {V. P. Maslov and A. E. Ruuge},
     title = {On a symmetric representation of the equation for quantum chaos},
     journal = {Matemati\v{c}eskie zametki},
     pages = {940--941},
     publisher = {mathdoc},
     volume = {62},
     number = {6},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_62_6_a16/}
}