@article{M2AN_2000__34_2_501_0,
     author = {Saut, Jean-Claude and Tzvetkov, Nikolay},
     title = {On a model system for the oblique interaction of internal gravity waves},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {501--523},
     publisher = {Dunod},
     address = {Paris},
     volume = {34},
     number = {2},
     year = {2000},
     mrnumber = {1765672},
     zbl = {0963.76018},
     language = {en},
     url = {http://www.numdam.org/item/M2AN_2000__34_2_501_0/}
}