@article{TMF_1999_119_1_a7, author = {P. V. Elyutin and O. V. Smirnova}, title = {On the quasi-classical limit of the quadratic susceptibility}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {93--104}, publisher = {mathdoc}, volume = {119}, number = {1}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_1999_119_1_a7/} }