@article{ZNSL_1985_145_a3,
     author = {V. I. Vozyakov and V. N. Popov},
     title = {Functional approach to the theory of quantum crystals},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {46--61},
     publisher = {mathdoc},
     volume = {145},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1985_145_a3/}
}