Richard William Decker, Henry H. Glover, John Philip Huneke. The genus of the 2-amalgamations of graphs. Journal of Graph Theory, 5(1):95-102, 1981. [doi]
@article{DeckerGH81,
title = {The genus of the 2-amalgamations of graphs},
author = {Richard William Decker and Henry H. Glover and John Philip Huneke},
year = {1981},
doi = {10.1002/jgt.3190050107},
url = {http://dx.doi.org/10.1002/jgt.3190050107},
researchr = {https://researchr.org/publication/DeckerGH81},
cites = {0},
citedby = {0},
journal = {Journal of Graph Theory},
volume = {5},
number = {1},
pages = {95-102},
}