@article{FPM_1998_4_1_a16,
     author = {V. N. Bezverkhnii},
     title = {On the intersection subgroups {HNN-groups}},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {199--222},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1998_4_1_a16/}
}