Marcjanek, M., Słodownik, P. and Ilieva-Makulec, K. 2014. Insects (ants, beetles, butterflies) as bioindicators. Studia Ecologiae et Bioethicae. 12, 3 (Sep. 2014), 99–120. DOI:https://doi.org/10.21697/seb.2014.12.3.06.