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au.\*:("TOERIEN DF")

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SOUTH AFRICAN EUTROPHICATION PROBLEMS; A PERSPECTIVETOERIEN DF.1975; WAT. POLLUT. CONTROL; G.B.; DA. 1975; VOL. 74; NO 2; PP. 134-142; BIBL. 1 P.; (BIENN. CONF. SOUTH. AFR. BRANCH; SALISBURY, RHOD.; 1974)Conference Paper

HALF SATURATION CONSTANT FOR NITROGEN-LIMITED GROWTH OF THE GREEN ALGA SELENASTRUM CAPRICORNUTUM PRINTZ = CONSTANTE DE DEMI-SATURATION APPLIQUEE A LA CROISSANCE DE L'ALGUE VERTE S. C. P. LORSQUE L'AZOTE EST LE FACTEUR LIMITANTTOERIEN DF.1974; S. AFR. J. SCI.; S. AFR.; DA. 1974; VOL. 70; NO 3; PP. 75-76; BIBL. 6REF.Article

THE DISSOLVED MINERAL COMPOSITION OF THE WATER FLOWING INTO AND OUT OF THE HARTBEESPOORT DAM.TOERIEN DF; WALMSLEY RD.1978; WAT. S.A.; S. AFR.; DA. 1978; VOL. 4; NO 1; PP. 25-38; BIBL. 18 REF.; 17 ILL.Article

THE EFFECT OF TEMPERATURE ON THE GROWTH OF ACINETOBACTER CALCOACETICUS.DU PREEZ JC; TOERIEN DF.1978; WAT. S.A.; S. AFR.; DA. 1978; VOL. 4; NO 1; PP. 10-13; BIBL. 10 REF.Article

EFFECT OF TEMPERATURE ON HETEROTROPHIC GLUCOSE UPTAKE, MINERALIZATION, AND TURNOVER RATES IN LAKE SEDIMENTSTOERIEN DF; CAVARI B.1982; APPL. ENVIRON. MICROBIOL.; ISSN 0099-2240; USA; DA. 1982; VOL. 43; NO 1; PP. 1-5; BIBL. 18 REF.Article

THE EUTROPHICATION LEVELS OF FOUR SOUTH AFRICAN IMPOUNDMENTSTOERIEN DF; STEYN DJ.1975; INTERNATION. VEREINIG. THEOR. ANGEW. LIMNOL., VERH.; DTSCH.; DA. 1975; VOL. 19; PART. 3; PP. 1947-1956; BIBL. 13 REF.; (INT. VEREINIG. THEOR. ANGEW. LIMNOL. KONGR. VERH.; CAN.; 1974)Conference Paper

ALGAL BIOASSAYS AND NITROGEN FIXATIONWALMSLEY RD; TOERIEN DF.1975; S. AFR. J. SCI.; S. AFR.; DA. 1975; VOL. 71; NO 10; PP. 313-314; BIBL. 10REF.Article

APPLICATION OF ALGAL BIOASSAYS IN EUTROPHICATION ANALYSESTOERIEN DF; STEYN DJ.1973; S. AFR. J. SCI.; S. AFR.; DA. 1973; VOL. 69; NO 3; PP. 79-82; BIBL. 5 REF.Serial Issue

THE CHEMICAL COMPOSITION OF THE UPPER HENNOPS RIVER AND ITS IMPLICATIONS ON THE WATER QUALITY OF RIETOLEI DAMTOERIEN DF; WALMSLEY RD.1979; WAT. S.A.; ZAF; DA. 1979; VOL. 5; NO 2; PP. 77-89; BIBL. 18 REF.; 6 ILL.Article

THE CHEMICAL COMPOSITION OF THE WATERS FLOWING INTO ROODEPLAAT DAMWALMSLEY RD; TOERIEN DF.1978; WAT. S.A.; ZAF; DA. 1978; VOL. 4; NO 4; PP. 192-202; BIBL. 26 REF.; 6 ILL.Article

THE PHOSPHORUS CHLOROPHYLL RELATIONSHIP IN ROODEPLAAT DAMPIETERSE AJH; TOERIEN DF.1978; WAT. S.A.; ZAF; DA. 1978; VOL. 4; NO 3; PP. 105-112; BIBL. 27 REF.Article

PHENOTYPIC PROPERTIES, METABOLIC ACTIVITIES AND ELECTROPHORETIC PROTEIN PATTERNS OF KLEBSIELLA OXYTOCA AND KLEBSIELLA PNEUMONIAE STRAINS ISOLATED FROM LAYER BEER BREWERIESVAN VUUREN HJJ; TOERIEN DF.1981; J. INST. BREW.; ISSN 0368-2587; GBR; DA. 1981; VOL. 87; NO 4; PP. 229-231; BIBL. 17 REF.Article

THE RETARDMENT OF ALGAL GROWTH IN MATURATION PONDSVAN DER POST DC; TOERIEN DF.1974; WAT. RES.; G.B.; DA. 1974; VOL. 8; NO 9; PP. 593-600; BIBL. 5 REF.Article

PRELIMINARY STUDIES ON THE TREATMENT OF CANNING FACTORY EFFLUENT WITH AN INTEGRATED BACTERIAL-ALGAL-FISH SYSTEM = ETUDE PRELIMINAIRE DU TRAITEMENT D'EFFLUENT DE CONSERVERIES AVEC UN SYSTEME INTEGRE BACTERIE-ALGUE-POISSONGAIGHER IG; CLOETE TE; TOERIEN DF et al.1982; WATER S.A.; ISSN 509787; ZAF; DA. 1982; VOL. 8; NO 2; PP. 97-100; BIBL. 11 REF.Article

GROWTH PARAMETERS OF ACINETOBACTER CALCOACETICUS ON ACETATE AND ETHANOLDU PREEZ JC; TOERIEN DF; LATEGAN PM et al.1981; EUR. J. APPL. MICROBIOL. BIOTECHNOL.; ISSN 0171-1741; DEU; DA. 1981; VOL. 13; NO 1; PP. 45-53; BIBL. 1 P.Article

OXYGEN DYNAMICS AND HETEROTROPHIC ASPECTS OF A POND TREATMENT SYSTEM FOR CATTLE FEEDLOT EFFLUENT = DYNAMIQUE DE L'OXYGENE ET ASPECTS HETEROTROPHES CONCERNANT UN SYSTEME DE TRAITEMENT PAR BASSIN DES EFFLUENTS PROVENANT D'ELEVAGE INTENSIF DE BOVINSCLOETE TE; LE ROUX JD; TOERIEN DF et al.1983; AGRICULTURAL WASTES; ISSN 0141-4607; GBR; DA. 1983; VOL. 7; NO 3; PP. 147-174; BIBL. 2 P.Article

EUTROPHICATION OF FOUR TRANSVAAL DAMS = EUTROPHISATION DE QUATRE BARRAGES AU TRANSVAALWALMSLEY RD; TOERIEN DF; STEYN DJ et al.1978; WAT. S.A.; ZAF; DA. 1978; VOL. 4; NO 2; PP. 61-75; BIBL. 22 REF.; ESQUISSE/ILL.Article

THE CULTIVATION OF ALGAE USING WASTE WATER FROM FEEDLOTS = UTILISATION D'EAUX RESIDUAIRES PROVENANT D'ENCLOS SANS HERBAGE POUR LA CULTURE D'ALGUESPIETERSE AJH; LE ROUX J; TOERIEN DF et al.1982; WATER S.A.; ISSN 509787; ZAF; DA. 1982; VOL. 8; NO 4; PP. 202-207; BIBL. 41 REF.Article

COMPARISON OF THE ALGAL BIOASSAY RESPONSES OF SELENASTRUM CAPRICORNUTUM AND MICROCYSTIS AERUGINOSA = COMPARAISON DES REACTIONS AUX TESTS BIOLOGIQUES DES ALGUES DE S. C. ET M. A.TOERIEN DF; HYMAN KL; BRUWER MJ et al.1974; S. AFR. J. SCI.; S. AFR.; DA. 1974; VOL. 70; NO 3; PP. 75; BIBL. 3REF.Article

STABILIZING HIGH-STRENGTH WASTES WITH PHOTOSYNTHETIC BACTERIA = STABILISATION DE DECHETS A FORTES CHARGES PAR DES BACTERIES PHOTOSYNTHETIQUESTOERIEN DF; CLOETE TE; DU TOIT PJ et al.1982; WATER S.A.; ISSN 509787; ZAF; DA. 1982; VOL. 8; NO 2; PP. 92-96; BIBL. 17 REF.Article

GROWTH MODELS FOR SALVINIA MOLESTATOERIEN DF; CARY PR; FINLAYSON CM et al.1983; AQUATIC BOTANY; ISSN 0304-3770; NLD; DA. 1983; VOL. 16; NO 2; PP. 173-179; BIBL. 18 REF.Article

THE INFLUENCE OF AN ANAEROBIC ZONE IN ACTIVATED SLUDGE SYSTEMS ON THE BACTERIAL POPULATION STRUCTURETOERIEN DF; VAN VUUREN HJJ; SADIE DN et al.1979; WAT. S.A.; ZAF; DA. 1979; VOL. 5; NO 3; PP. 109-113; BIBL. 7 REF.Article

THE IDENTIFICATION OF ENTEROBACTERIACEAE FROM BREWERIES: COMBINED USE AND COMPARISON OF API 20E SYSTEM, GEL ELECTROPHORESIS OF PROTEINS AND GAS CHROMATOGRAPHY OF VOLATILE METABOLITESVAN VUUREN HJJ; KERSTERS K; DE LEY J et al.1981; J. APPL. BACTERIOL.; ISSN 0021-8847; GBR; DA. 1981; VOL. 51; NO 1; PP. 51-65; BIBL. 25 REF.Article

THE EFFECT OF CARBON ON ALGAL GROWTH-ITS RELATIONSHIP TO EUTROPHICATIONGOLDMAN JC; PORCELLA DB; MIDDLEBROOKS EJ et al.1972; WATER RES.; G.B.; DA. 1972; VOL. 6; NO 6; PP. 637-679; BIBL. 8 P. 1/2Serial Issue

ENTEROBACTER AGGLOMERANS. A NEW BACTERIAL CONTAMINANT ISOLATED FROM LAGER BEER BREWERIESVAN VUUREN HJJ; KERSTERS K; DELEY J et al.1978; J. INST. BREW.; GBR; DA. 1978; VOL. 84; NO 6; PP. 315-317; BIBL. 26 REF.Article

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