@article{TMF_2018_197_2_a2,
     author = {H. R. Poghosyan and H. M. Babujian and G. K. Savvidi},
     title = {Artin billiard: {Exponential} decay of correlation functions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {230--251},
     publisher = {mathdoc},
     volume = {197},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2018_197_2_a2/}
}