@article{IM2_1990_34_1_a8,
     author = {G. S. Makanin},
     title = {On an analogue of the {Alexander{\textendash}Markov} theorem},
     journal = {Izvestiya. Mathematics},
     pages = {201--211},
     year = {1990},
     volume = {34},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1990_34_1_a8/}
}