@article{ZNSL_2017_462_a1,
     author = {A. M. Vershik and A. V. Malyutin},
     title = {Infinite geodesics in the discrete {Heisenberg} group},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {39--51},
     publisher = {mathdoc},
     volume = {462},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2017_462_a1/}
}