(1)
Zielonka, D.; Nierebiński, M.; Kalaji, H. M.; Augustynowicz, J.; Prędecka, A.; Russel, S. Efficiency of the Photosynthetic Apparatus in Cannabis Sativa L. Fertilized With Sludge Froma Wastewater Treatment Plant and With Phosphogypsum. EQ 2018, 28, 55-61.