@article{TMF_1994_99_2_a11,
     author = {E. V. Ferapontov},
     title = {Several conjectures and results in the theory of integrable {Hamiltonian} systems of hydrodynamic type, which do not possess {Riemann} invariants},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {257--262},
     publisher = {mathdoc},
     volume = {99},
     number = {2},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TMF_1994_99_2_a11/}
}