@article{IM2_2014_78_4_a3,
     author = {V. V. Kozlov},
     title = {Liouville's equation as {a~Schr\"odinger} equation},
     journal = {Izvestiya. Mathematics},
     pages = {744--757},
     year = {2014},
     volume = {78},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2014_78_4_a3/}
}