@article{ADM_2020_30_2_a7,
     author = {A. Rajhi},
     title = {Groups whose lattices of normal subgroups are~factorial},
     journal = {Algebra and discrete mathematics},
     pages = {239--253},
     publisher = {mathdoc},
     volume = {30},
     number = {2},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2020_30_2_a7/}
}