FIBONACCI SEARCH FOR HIGH-YIELD WELL SITES.HELWEG OJ.1976; GROUND WAT.; U.S.A.; 1976, VOL. 14, NUM. 0002, P. 78 A 81Serial Issue

DETERMINING OPTIMAL WELL DISCHARGE.HELWEG OJ.1975; PROC. AMER. SOC. CIV. ENGRS, J. IRRIG. DRAIN. DIV.; U.S.A.; 1975, VOL. 101, NUM. 0003, P. 201 A 208Serial Issue

A NONSTRUCTURAL APPROACH TO CONTROL SALT ACCUMULATION IN GROUND WATER.HELWEG OJ.1977; GROUND WAT.; U.S.A.; DA. 1977; VOL. 2; PP. 51-57; BIBL. 6 REF.; 9 ILL.; (3RD NATL. GROUND WATER QUAL. SYMP.; LAS VEGAS; 1976)Conference Paper

LARGE-SCALE URBAN MODELINGHELWEG OJ.1979; PROC. AMER. SOC. CIV. ENGRS, J. URBAN PLANN. DEVELOP. DIV.; USA; DA. 1979; VOL. 105; NO 2; PP. 89-101; BIBL. 11 REF.Article

DETERMINING OPTIMAL WELL DISCHARGEHELWEG OJ.1975; PROC. AMER. SOC. CIV. ENGRS, J. IRRIG. DRAIN. DIV.; U.S.A.; DA. 1975; VOL. 101; NO 3; PP. 201-208; BIBL. 6 REF.Article

ESTIMATING IRRIGATION WATER QUANTITY AND QUALITYHELWEG OJ; ALVAREZ D.1980; PROC. AM. SOC. CIV. ENG., J. IRRIG. DRAIN. DIV.; ISSN 0044-7978; USA; DA. 1980; VOL. 106; NO 3; PP. 175-188; BIBL. 6 REF.Article

APPROPRIATE TECHNOLOGY FOR ARTIFICIAL AQUIFERS.HELWEG OJ; SMITH G.1978; GROUND WAT.; U.S.A.; DA. 1978; VOL. 16; NO 3; PP. 144-148; BIBL. 8 REF.; 8 ILL.Article

OPTIMAL DESIGN OF SMALL RESERVOIR SYSTEMS = CALCUL OPTIMAL DE SYSTEMES DE PETITS RESERVOIRSSHARMA PN; HELWEG OJ.1982; PROC. AM. SOC. CIV., ENG., J. IRRIG. DRAIN. DIV.; ISSN 0044-7978; USA; DA. 1982; VOL. 108; NO 4; PP. 250-264; BIBL. 9 REF.Article

LINKED MODELS FOR MANAGING RIVER BASIN SALT BALANCE.HELWEG OJ; LABADIE JW.1977; WAT. RESOURCE RES.; U.S.A.; DA. 1977; VOL. 13; NO 2; PP. 329-336; BIBL. 8 REF.; 6 ILL.Article

ACCELERATED SALT TRANSPORT METHOD FOR MANAGING GROUND WATER QUALITY.HELWEG OJ; LABADIE JW.1976; WAT. RESOURCES BULL.; U.S.A.; DA. 1976; VOL. 12; NO 4; PP. 681-693; BIBL. 9 REF.; 6 ILL.Article

STATE-OF-THE-ART OF ESTIMATING FLOOD DAMAGE IN URBAN AREAS.GRIGG NS; HELWEG OJ.1975; WAT. RESOURCES BULL.; USA; 1975, VOL. 11, NUM. 0002, P. 379 A 390Serial Issue

HYDROGRAPHS BY SINGLE LINEAR RESERVOIR MODELPEDERSEN JT; PETERS JC; HELWEG OJ et al.1980; PROC. AMER. SOC. CIV. ENGRS, J. HYDRAUL. DIV.; USA; DA. 1980; VOL. 106; NO 5; PP. 837-852; BIBL. 18 REF.; 10 ILL.Article

STEP-DRAWDOWN TEST ANALYSIS BY COMPUTER.LABADIE JW; HELWEG OJ; SHEAHAN NT et al.1975; GROUND WAT.; U.S.A.; 1975, VOL. 13, NUM. 0005, P. 438 A 450Serial Issue