@article{ZNSL_2018_468_a3,
     author = {A. M. Vershik and A. V. Malyutin},
     title = {Asymptotic behavior of the number of geodesics in the discrete {Heisenberg} group},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {39--52},
     publisher = {mathdoc},
     volume = {468},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2018_468_a3/}
}