@article{RM_1989_44_1_a1,
     author = {L. A. Kalyakin},
     title = {Long wave asymptotics. {Integrable} equations as asymptotic limits of non-linear systems},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {3--42},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1989_44_1_a1/}
}