Application of ABC and XYZ Analysis to Inventory Optimization at a Commercial EnterpriseT G Trubchenko, E S Kiseleva, M. A. Loshchilova, A N Dreval, T G Ryzhakina and N V ShaftelskayaSHS Web Conf., 80 (2020) 01007DOI: https://doi.org/10.1051/shsconf/20208001007