Parsova, V., Jankava, A., Berzina, M., Palabinska, A., (2020). Current Trends in Natural Sciences 9(17), 147-152. University of Pitesti Publishing House, Pitesti, Romania. English language
Jankava, A., Palabinska, A., Konosonoka, D., (2018). Proceedings 17th International Scientific Conference "Engineering for Rural Development", 23-25 May 2018, Jelgava, Latvia, 1065-1071. Latvia University of Life Sciences and Technologies, Jelgava, Latvia. English language