Wielgat, R., Król, D., Potempa, T., Kozioł, P. and Lisowska-Lis, A. 2017. Towards the automatic acoustical avian monitoring system. Science, Technology and Innovation. 4, 3 (Oct. 2017), 17–38. DOI:https://doi.org/10.5604/01.3001.0010.7995.