Marcjanek, M., P. Słodownik, and K. Ilieva-Makulec. “Insects (ants, Beetles, Butterflies) As Bioindicators”. Studia Ecologiae Et Bioethicae, vol. 12, no. 3, Sept. 2014, pp. 99-120, doi:10.21697/seb.2014.12.3.06.