@article{ADM_2014_17_2_a0,
     author = {T. Banakh and R. Grigorchuk and I. Guran and V. Kirichenko and V. Nekrashevich and A. Oliynyk and B. Oliynyk and A. Petravchuk and V. Sushchansky and M. Zarichnyi and A. Zhuchok and Yu. Zhuchok},
     title = {Igor {Volodymyrovych} {Protasov} (dedicated to 60-th {Birthday)}},
     journal = {Algebra and discrete mathematics},
     pages = {C--F},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2014_17_2_a0/}
}