The impact of Bacillus megaterium on the solubilisation of phosphorus from sewage sludgeJoanna Ciopińska, Elżbieta Bezak–Mazur, Renata Stoińska and Bartosz SzelągE3S Web Conf., 86 (2019) 00032DOI: https://doi.org/10.1051/e3sconf/20198600032