DIN EN ISO 23611-3-2011 土壤质量.土壤无脊椎动物的取样.第3部分:线蚓的取样和土壤萃取(ISO 23611-3-2007);德文版本EN ISO 23611-3-2011
Soil quality - Sampling of soil invertebrates - Part 3: Sampling and soil extraction of enchytraeids (ISO 23611-3:2007); German version EN ISO 23611-3:2011