@article{ZNSL_1981_101_a6,
     author = {V. S. Kapitonov and V. N. Popov},
     title = {Functional integral approuch to the theory of crystals},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {77--89},
     publisher = {mathdoc},
     volume = {101},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1981_101_a6/}
}