@article{10_4064_am_20_2_281_289,
     author = {P. Todorovic},
     title = {An extremal problem arising in soil erosion modeling},
     journal = {Applicationes Mathematicae},
     pages = {281--289},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1988},
     doi = {10.4064/am-20-2-281-289},
     zbl = {0723.60027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-20-2-281-289/}
}