TY - JOUR AU - P. Todorovic TI - An extremal problem arising in soil erosion modeling JO - Applicationes Mathematicae PY - 1988 SP - 281 EP - 289 VL - 20 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-20-2-281-289/ DO - 10.4064/am-20-2-281-289 LA - en ID - 10_4064_am_20_2_281_289 ER -