TY - JOUR AU - Mohammed S. Y. Alsharafi AU - Abdu Q. Alameri TI - The F-index and coindex of V-phenylenic nanotubes and nanotorus and their molecular complement graphs JO - Nanosistemy: fizika, himiâ, matematika PY - 2021 SP - 263 EP - 270 VL - 12 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NANO_2021_12_3_a0/ LA - en ID - NANO_2021_12_3_a0 ER -