Sanchéz, M., and F. Ruette. “Reductive Hydrogen Elimination by an Iron Metal Center. Feq (q=+ 1,0,-1). A Semiempirical Molecular Orbital Study”. Ciencia, Vol. 5, no. 2, 1, https://produccioncientifica.luz.edu.ve/index.php/ciencia/article/view/8825.