@article{MM3_2006_10_1_a2,
     author = {Radoslav Gali\'c and Anita Kati\'c},
     title = {One {Observation} on {(n,m){\textendash}Semigroups}},
     journal = {Mathematica Moravica},
     pages = {21 - 26},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {2006},
     url = {https://geodesic-test.mathdoc.fr/item/MM3_2006_10_1_a2/}
}