Hallmann, CA; Sorg, M; Jongejans, E; Siepel, H; Hofland, N; Schwan, H (18 жовтня 2017), More than 75 percent decline over 27 years in total flying insect biomass in protected areas, PLOS ONE, 12 (10): e0185809, doi:10.1371/journal.pone.0185809, PMC5646769, PMID29045418
Hallmann, CA; Sorg, M; Jongejans, E; Siepel, H; Hofland, N; Schwan, H (18 жовтня 2017), More than 75 percent decline over 27 years in total flying insect biomass in protected areas, PLOS ONE, 12 (10): e0185809, doi:10.1371/journal.pone.0185809, PMC5646769, PMID29045418
pubmed.ncbi.nlm.nih.gov
Hallmann, CA; Sorg, M; Jongejans, E; Siepel, H; Hofland, N; Schwan, H (18 жовтня 2017), More than 75 percent decline over 27 years in total flying insect biomass in protected areas, PLOS ONE, 12 (10): e0185809, doi:10.1371/journal.pone.0185809, PMC5646769, PMID29045418