@article{BGUMI_2018_2_a1,
     author = {A. N. Admiralova and V. V. Benyash-Krivets},
     title = {On representation varieties of some {HNN-extensions} of free groups},
     journal = {Journal of the Belarusian State University. Mathematics and Informatics},
     pages = {10--16},
     publisher = {mathdoc},
     volume = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/BGUMI_2018_2_a1/}
}