Янчева, М.О. and Коваленко, С.М. 2012. Technology of frozen meat semi-finished goods based on ground beef, which fermented by collagenaza. Eastern-European Journal of Enterprise Technologies. 1, 6(55) (Feb. 2012), 45–48. DOI:https://doi.org/10.15587/1729-4061.2012.3399.