@article{UMJ_2023_9_1_a9,
     author = {Athir P. Ranjith and Joseph Varghese Kureethara},
     title = {Sum signed graphs -- {II}},
     journal = {Ural mathematical journal},
     pages = {121--126},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2023_9_1_a9/}
}