@article{MZM_1987_41_3_a8,
     author = {R. S. Yulmukhametov},
     title = {Asymptotics of the difference of subharmonic functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {348--355},
     year = {1987},
     volume = {41},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_41_3_a8/}
}