@article{DAN_1972_204_3_a9,
     author = {G. N. Mil'shtein},
     title = {Linear {Ljapunov} functions for equations with positive solutions and the root-mean-square stability},
     journal = {Doklady Akademii Nauk},
     pages = {550--553},
     publisher = {mathdoc},
     volume = {204},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_204_3_a9/}
}