Rutkovska, Santa, Irēna Pučka, and Ingūna Novicka. 2015. “Analysis Of Invasive Flora In Cemetery Territories Of The City Of Daugavpils”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (August): 344-51. https://doi.org/10.17770/etr2011vol2.1001.