Soil quality - Determination of soil microbial biomass - Part 2: Fumigation-extraction method (ISO 14240-2:1997); German version FprEN ISO 14240-2:2010
Soil quality - Determination of soil microbial biomass - Part 2: Fumigation-extraction method (ISO 14240-2:1997); German version EN ISO 14240-2:2011— 20 стр.