Różyło, K., Świeca, M., Gawlik-Dziki, U., Kwiecińska-Poppe, E., Andruszczak, S. and Kraska, P. (2017) “Phytochemical properties and heavy metal accumulation in wheat grain after three years’ fertilization with biogas digestate and mineral waste”, Agricultural and Food Science, 26(3), pp. 148–159. doi: 10.23986/afsci.63156.