1. Archdeacon, D., A Kuratowski theorem for the projective plane, J. Graph Theory, 5(1981), 241–246.
2. Auslander, L., Brown, T. A. and Youngs, J. W. T., The imbedding of graphs in manifolds, The Journal of Mathematics and Mechanics, 12(1963), 629–634.
3. Bodendiek, R. and Wagner, K., On some minimal graphs of the torus, J. Graph Theory, 9(1985), 411–417.
4. Decker, R. W., The genus of certain graphs. Ph. D Dissertation, The Ohio State University, 1978.
5. Liu, Y. P., Embeddability in Graphs, Kluwer &. Science, 1995.