Calvo-Fernández J, Marcos E, Calvo L. Short-term effects of nitrogen deposition on soil microbial biomass in Calluna heathlands NW Spain: critical loads. EQ [Internet]. 2014 Jul. 14 [cited 2024 Jul. 18];21:65-6. Available from: https://apcz.umk.pl/EQ/article/view/EQ.2015.010