@article{DMGAA_2018_38_1_a1,
     author = {Das, Arpita and Panigrahi, Pratima},
     title = {Spectra of {R-Vertex} {Join} and {R-Edge} {Join} of {Two} {Graphs}},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {19--31},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2018_38_1_a1/}
}