@article{AA_2016_28_5_a0,
     author = {S. V. Buyalo},
     title = {M\"obius and {sub-M\"obius} structures},
     journal = {Algebra i analiz},
     pages = {1--20},
     publisher = {mathdoc},
     volume = {28},
     number = {5},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2016_28_5_a0/}
}