A MODELING APPROACH TO WATERSHED CONSERVATION PLANNING = APPROCHE DE MODELISATION POUR LA PLANIFICATION DE LA PROTECTION D'UN BASSIN VERSANTOGG CW; HEIMLICH RE; HOSTETLER JE et al.1980; J. SOIL WATER CONSERV.; ISSN 0022-4561; USA; DA. 1980; VOL. 35; NO 6; PP. 271-273; BIBL. 6 REF.; 3 TAB. ; TABL.Article

EFFICIENTLY REDUCING NONPOINT PHOSPHORUS LOADS TO LAKES AND RESERVOIRSOGG CW; HEIMLICH R; PIONKE H et al.1980; WATER RESOUR. BULL. (URBANA); ISSN 0043-1370; USA; DA. 1980; VOL. 16; NO 6; PP. 967-970; BIBL. 19 REF.Article