%0 Journal Article %A P. Todorovic %T An extremal problem arising in soil erosion modeling %J Applicationes Mathematicae %D 1988 %P 281-289 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-20-2-281-289/ %R 10.4064/am-20-2-281-289 %G en %F 10_4064_am_20_2_281_289