Effects of ZnO nanoparticles on microbial biomass and enzyme activity in soils containing cellulose and ligninHao Jiang, Hui Wang, Baoshan Yang, Xinlei Cao and Xingyue LiuE3S Web Conf., 194 (2020) 05028DOI: https://doi.org/10.1051/e3sconf/202019405028