[1]
Iliev Ninov, P. et al. 2017. DETERMINATION OF WATER RESOURCES IN RIVERS IN THE BULGARIAN BASINS OF THE LOWER DANUBE. Journal of the Geographical Institute “Jovan Cvijić” SASA. 67, 1 (Apr. 2017), 11–25. DOI:https://doi.org/10.2298/IJGI1701011I.