Faye, Moussa, Mouhamadou Moustapha Sow, Papa Aly Gaye, Moussa Dieng, and Mohamed Gaye. 2021. “Crystal Structures of Bis-{N-[1-(pyridin-2-Yl-κN)ethylidene]nicotine Hydrazide-κ2N’,O}cobalt(II)bis(perchlorate) Dihydrate and Bis-{N’-[1-(pyridin-2-Yl-κN)ethylidene]nicotinohydrazide-κ2N’,O}copper(II) Perchlorate”. European Journal of Chemistry 12 (2):159-64. https://doi.org/10.5155/eurjchem.12.2.159-164.2074.