Keratinolytic and α-L-Rhamnosidase Activity of Bacterial Isolates, Isolated from Gastropod Molluscs Nacella concinna (Nacellidae) − Residents of Antarctic - L. D. Varbanets; Ye. Berezkina; K. V. Avdiiuk; O. V. Hudzenko; T. V. Bulyhina; M. A. Kharkhota; Yu. Utievskyi (Microbiological Journal, 2020)