@article{TMF_2008_156_1_a7,
     author = {R. Falcao and A. Francisco Neto and E. Pereira},
     title = {Analytic approach to the~(an)harmonic crystal chains with
},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {138--146},
     publisher = {mathdoc},
     volume = {156},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2008_156_1_a7/}
}