@article{UFA_2017_9_4_a4,
     author = {Y. Sh. Il'yasov and E. E. Kholodnov},
     title = {On global instability of  solutions to hyperbolic equations with {non-Lipschitz} nonlinearity},
     journal = {Ufa mathematical journal},
     pages = {44--53},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2017_9_4_a4/}
}