Soil quality - Sampling of soil invertebrates - Part 1: Hand-sorting and extraction of earthworms (ISO 23611-1:2018); German version EN ISO 23611-1:2018— 30 стр.
Soil quality - Sampling of soil invertebrates - Part 3: Sampling and extraction of enchytraeids (ISO 23611-3:2019); German version EN ISO 23611-3:2019— 25 стр.