THE FRACTIONATION OF HUMIC ACIDS FROM NATURAL WATER SYSTEMSWERSHAW RL; PINCKNEY DJ.1973; J. RES. U.S. GEOL. SURV.; U.S.A.; DA. 1973; VOL. 1; NO 3; PP. 361-366; BIBL. 31 REF.; 2 ILL.Serial Issue

SOURCES AND BEHAVIOR OF MERCURY IN SURFACE WATERS.WERSHAW RL.1970; GEOL. SURV. U.S.A., PROF. PAPER; USA; 1970, NUM. 0713, P. 29 A 31Miscellaneous

THE FRACTIONATION OF HUMIC ACIDS FROM NATURAL WATER SYSTEMSWERSHAW RL; PINCKNEY DJ.1973; J. RES. U.S. GEOL. SURV.; U.S.A. ; 1973, VOL. 1, NUM. 0003, P. 361 A 366Serial Issue

CHEMICAL REACTIONS IN THE UNSATURATED ZONE - THE FRACTIONATION AND CLASSIFICATION OF HUMIC ACIDS FROM NATURAL WATER SYSTEMS.WERSHAW RL; PINCKNEY DJ.1972; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1972, VOL. 4, NUM. 0007, P. 704 A 705Serial Issue

DETERMINATION OF THE ASSOCIATION AND DISSOCIATION OF HUMIC ACID FRACTIONS BY SMALL ANGLE X-RAY SCATTERING.WERSHAW RL; PINCKNEY DJ.1972; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1972, VOL. 4, NUM. 0007, P. 705Serial Issue

DIRECT ¹³CNMR EVIDENCE FOR CARBOHYDRATE MOIETIES IN FULVIC ACIDSWERSHAW RL; MIKITA MA; STEELINK C et al.1981; ENVIRON. SCI. TECHNOL.; ISSN 0013-936X; USA; DA. 1981; VOL. 15; NO 12; PP. 1461-1463; BIBL. 18 REF.Article

COMPLEXATION OF COPPER BY AQUATIC HUMIC SUBSTANCES FROM DIFFERENT ENVIRONMENTSMCKNIGHT DM; FEDER GL; THURMAN EM et al.1983; SCI. TOTAL ENVIRON.; NLD; DA. 1983; VOL. 28; PP. 65-76; BIBL. 17 REF.Conference Paper

MOLECULAR SIZE OF AQUATIC HUMIC SUBSTANCES = DIMENSION MOLECULAIRE DES SUBSTANCES HUMIQUES AQUATIQUESTHURMAN EM; WERSHAW RL; MALCOLM RL et al.1982; ORG. GEOCHEM.; ISSN 0146-6380; USA; DA. 1982; VOL. 4; NO 1; PP. 27-35; BIBL. 2 P.Article