@article{10_4153_S0008439524000365,
     author = {Bulinski, Kamil and Shparlinski, Igor E.},
     title = {Counting elements of the congruence subgroup},
     journal = {Canadian mathematical bulletin},
     pages = {955--969},
     year = {2024},
     volume = {67},
     number = {4},
     doi = {10.4153/S0008439524000365},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439524000365/}
}