Tóth, A., Balogh, Á., Wichmann, B., Dancza, I., Szalkay, C., & Penksza, K. (2011). Seasonal Changes in Weed Vegetation on Arable Pannonian Sand and Loess Lands in Hungary. Hungarian Journal of Industry and Chemistry, 39(2), 313–315. https://doi.org/10.1515/431