@article{ZNSL_1983_128_a13,
     author = {L. A. Molotkov and A. E. Khilo},
     title = {The effective media for periodic anisotropic systems},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {130--138},
     year = {1983},
     volume = {128},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_128_a13/}
}