@article{MASLO_2007__57_1_a2,
     author = {Ate\c{s}, Firat and \c{C}evik, A. Sinan},
     title = {(Cyclic) subgroup separability of {HNN} and split extensions},
     journal = {Mathematica slovaca},
     pages = {33--40},
     publisher = {mathdoc},
     volume = {57},
     number = {1},
     year = {2007},
     mrnumber = {2357805},
     zbl = {1137.20020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_2007__57_1_a2/}
}