@article{DAN_1983_271_1_a5,
     author = {R. I. Grigorchuk},
     title = {On the {Milnor} problem of group growth},
     journal = {Doklady Akademii Nauk},
     pages = {30--33},
     publisher = {mathdoc},
     volume = {271},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_271_1_a5/}
}