Agricultural run-off management land report of Estonia : final report 1994-1997
Loigu, Enn
;
Kuldkepp, Paul
;
Iital, Arvo
;
Bogun, Gennadi
;
Tamm, Toomas
;
Raia, Tiiu
;
Gutmann, Enn
;
Carlson, Göran
1997
https://www.ester.ee/record=b4284537*est