Structural and electronic properties of cyanide-coated fullerene C20@(CN)n(n=0-20): An ab initio approachFerhat Demiray, İsa Sıdır and Yadigar Gülseven SıdırEur. Phys. J. Plus, 131 8 (2016) 250DOI: https://doi.org/10.1140/epjp/i2016-16250-0