“Education for Ecological Awareness. Based on research of periodicals devoted to nature in the II Republic of Poland (1918-1939) on the example of a "Free Addition to natural sciences monthly for youths Orli Lot [Eagle Flight] devoted to the environmental ”, FeR, vol. 50, no. 2, pp. 42–49, Jun. 2022, doi: 10.34766/fetr.v50i2.1067.