1.
Kulli VR, Niranjan KM. On Minimally Nonouterplanarity of the Semi Total (Point) Graph of a Graph. J. Sci. Res. [Internet]. 2009 Aug. 29 [cited 2022 May 16];1(3):551-7. Available from: https://banglajol.info/index.php/JSR/article/view/2578