@article{DAN_1964_157_3_a6,
     author = {Ling Zhengqiu},
     title = {Asymptotic behaviour of solutions of the {Cauchy} problem when the limiting equation has a singularity},
     journal = {Doklady Akademii Nauk},
     pages = {522--525},
     publisher = {mathdoc},
     volume = {157},
     number = {3},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_157_3_a6/}
}