@article{SM_1992_71_1_a5,
     author = {E. V. Ferapontov},
     title = {Integration of weekly nonlinear semi-hamiltonian systems of hydrodynamic type by methods of the theory of~webs},
     journal = {Sbornik. Mathematics},
     pages = {65--79},
     publisher = {mathdoc},
     volume = {71},
     number = {1},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1992_71_1_a5/}
}