@article{MMNP_2013_8_5_a7,
     author = {N.H. Ibragimov and R.N. Ibragimov},
     title = {Bifurcation of {Nonlinear} {Conservation} {Laws} from the {Classical} {Energy} {Conservation} {Law} for {Internal} {Gravity} {Waves} in {Cylindrical} {Wave} {Field}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {119--130},
     publisher = {mathdoc},
     volume = {8},
     number = {5},
     year = {2013},
     doi = {10.1051/mmnp/20138508},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20138508/}
}