@article{ZNSL_1989_179_a20,
     author = {S. K. Tleukenov},
     title = {On bending vibrations of periodic inhomogeneous orthotropic membrane},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {179--181},
     publisher = {mathdoc},
     volume = {179},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_179_a20/}
}