@article{10_2298_FIL1919141M,
     author = {Nadica Mihajlovi\'c and Dragan S Djordjevi\'c},
     title = {On group invertibility in rings},
     journal = {Filomat},
     pages = {6141 },
     year = {2019},
     volume = {33},
     number = {19},
     doi = {10.2298/FIL1919141M},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL1919141M/}
}