@article{FPM_2003_9_1_a17,
     author = {E. E. Shirshova},
     title = {On extensions of {AO-groups}},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {277--281},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2003_9_1_a17/}
}