“THE QUANTITY OF AMMONIUM CREATING BACTERIUM OF LIGHT BROWN AND GRAY SEMI DESERT SOILS OF APPLE ORCHARDS AFTER THE INTRODUCTION OF ENTOMO PATHOGEN BACTERIUM CREATING CRYSTALS”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 40, no. 3 (211), Oct. 2006, pp. 71-77, https://doi.org/10.46991/PYSUB.2006.40.3.071.