@conference{czyzewski1992multitask, title = {Multitask Method for Digital Restoration of Old Recordings}, author = {Czyzewski, Andrzej and Kostek, Bozena and Roland-Mieszkowski, Marek}, booktitle = {Audio Engineering Society Convention 93}, month = {Oct}, year = {1992}, url = {https://www.aes.org/e-lib/browse.cfm?elib=6698} }