@article{PIM_1974_N_S_17_31_a8,
     author = {A. Krape\v{z}},
     title = {On a generalization of {Fermat's} theorem in the theory of groups},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {77 },
     publisher = {mathdoc},
     volume = {_N_S_17},
     number = {31},
     year = {1974},
     url = {http://geodesic.mathdoc.fr/item/PIM_1974_N_S_17_31_a8/}
}