@article{MM3_1999_3_1_a18,
     author = {Janez U\v{s}an},
     title = {A {COMMENT} {OF} {POWER} {IN} {n-GROUP}},
     journal = {Mathematica Moravica},
     pages = {117 - 126},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1999},
     url = {https://geodesic-test.mathdoc.fr/item/MM3_1999_3_1_a18/}
}