A Small Correction to a Paper of Vandermonde
Matthew Davis, Shiv K. Gupta

Open J. Discrete Math. Vol.11 No.2, April 30, 2021
DOI:10.4236/ojdm.2021.112004

Cordial Labeling of Corona Product of Path Graph and Second Power of Fan Graph
Ashraf Ibrahim Hefnawy Elrokh, Shokry Ibrahim Mohamed Nada, Eman Mohamed El-Sayed El-Shafey

Open J. Discrete Math. Vol.11 No.2, April 15, 2021
DOI:10.4236/ojdm.2021.112003