@article{UMJ_2019_5_2_a4,
     author = {A. P. Santhakumaran and K. Ganesamoorthy},
     title = {Restrained double monophonic number of a graph},
     journal = {Ural mathematical journal},
     pages = {55--63},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2019_5_2_a4/}
}