[1]
Matisāns, E. and Ivanovs, S. 2001. ENVIROMENT-FRIENDLY FARMING PROJECTS IN LATGALE. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference. 1, (Jun. 2001), 75–80. DOI:https://doi.org/10.17770/etr2001vol1.1939.