@article{VMUMM_1991_1_a16,
     author = {A. I. Zhukov},
     title = {An effective estimate for the order of the zeros of a polynomial of a set of functions satisfying a system of linear differential equations},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {79--82},
     publisher = {mathdoc},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1991_1_a16/}
}