@article{TMF_1991_87_3_a8,
     author = {B. S. Pavlov and S. V. Frolov},
     title = {Formula for the sum of the effective masses of a~multidimensional lattice},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {456--472},
     publisher = {mathdoc},
     volume = {87},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_87_3_a8/}
}