8.
BŁAŻEJ R., JURDZIAK L., KIRJANÓW-BŁAŻEJ A., BAJDA M., OLCHÓWKA D., RZESZOWSKA A., 2022, Profitability of Conveyor Belt Refurbishment and Diagnostics in the Light of the Circu-lar Economy and the Full and Effective Use of Resources, Energies, 15 (20), 1–15, DOI: 10.3390/en15207632.