@article{NSJOM_1985_15_2a_6,
     author = {Proti\'c 

 Petar and Bogdanovi\'c Stojan},
     title = {Some congruences on a 

 {Strongly} 

 p-inverse 

 r-semigroup},
     journal = {Novi Sad Journal of Mathematics},
     pages = {79-89},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1985},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1985_15_2a_6/}
}