Tsvyatkova, D., & Sarov, A.
(2020).
Waste water use in agriculture - comparative study from Bulgaria. European agriculture and the CAP 2021-2027 : Challenges and opportunities" : International Conference, October 23-25, 2019 : Book of Proceedings VIth International Scientific Forum "Agricultural economics to support farming (с. 101-108.). Sofia: Institute of Agricultural Economics - Sofia.