Geodesic
Breaking of weak shock waves in a shallow water
Zapiski Nauchnykh Seminarov POMI, Mathematical problems in the theory of wave propagation. Part 18, Tome 173 (1988), pp. 159-162 
Hoang Van Tao. Breaking of weak shock waves in a shallow water. Zapiski Nauchnykh Seminarov POMI, Mathematical problems in the theory of wave propagation. Part 18, Tome 173 (1988), pp. 159-162. http://geodesic.mathdoc.fr/item/ZNSL_1988_173_a14/
@article{ZNSL_1988_173_a14,
     author = {Hoang Van Tao},
     title = {Breaking of weak shock waves in a shallow water},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {159--162},
     year = {1988},
     volume = {173},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1988_173_a14/}
}
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TI  - Breaking of weak shock waves in a shallow water
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PY  - 1988
SP  - 159
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VL  - 173
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1988_173_a14/
LA  - ru
ID  - ZNSL_1988_173_a14
ER  - 
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%J Zapiski Nauchnykh Seminarov POMI
%D 1988
%P 159-162
%V 173
%U http://geodesic.mathdoc.fr/item/ZNSL_1988_173_a14/
%G ru
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The perturbation method is used for statement of some necessary and sufficient conditions of breaking of weak shock waves in a shallow water.