Muñoz, J.J., and J.E. Rodríguez-Páez. “SYNTHESIS OF CERAMIC POWDERS OF ZINC - BISMUTH - ALUMINIUM - ANTIMONY - LANTHANUM AND THEIR USE IN MAKING VARISTORS”. Revista De La Academia Colombiana De Ciencias Exactas, Físicas Y Naturales, vol. 30, no. 115, Nov. 2023, pp. 259-6, doi:10.18257/raccefyn.30(115).2006.2291.