@article{MM3_1999_3_1_a19,
     author = {Janez U\v{s}an},
     title = {NOTE {ON} {(n,m)-GROUPS}},
     journal = {Mathematica Moravica},
     pages = {127 - 139},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1999},
     url = {https://geodesic-test.mathdoc.fr/item/MM3_1999_3_1_a19/}
}