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METHODEN DER QUALITAETSBEURTEILUNG BEI KARTOFFELN FUER DEN MENSCHLICHEN KONSUM = METHODES D'EVALUATION DE LA QUALITE DES POMMES DE TERRE DESTINEES A LA CONSOMMATION HUMAINEWINIGER FA; LUDWIG JW.1974; POTATO RES.; NETHERL.; DA. 1974; VOL. 17; NO 4; PP. 434-465; ABS. ANGL. FR.; BIBL. 3 P. 1/2Article

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LONG-TERM PERSISTENCE OF PICLORAM IN A SANDY LOAM SOILFRYER JD; SMITH PD; LUDWIG JW et al.1979; J. ENVIRONMENT. QUALITY; USA; DA. 1979; VOL. 8; NO 1; PP. 83-86; BIBL. 13 REF.Article

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DIGITAL VIDEO SUBTRACTION ANGIOGRAPHY (VDSA) EQUIPEMENT. ANGIOGRAPHIC TECHNIQUE IN COMPARISON WITH CONVENTIONAL ANGIOGRAPHY IN DIFFERENT VASCULAR AREASLUDWIG JW; VERHOEVEN LHJ; ENGELS PHC et al.1982; BR. J. RADIOL.; ISSN 0007-1285; GBR; DA. 1982; VOL. 55; NO 656; PP. 545-553; BIBL. 10 REF.Article

TESTS OF SOIL FERTILITY FOLLOWING REPEATED APPLICATIONS OF MCPA, TRI-ALLATE, SIMAZINE AND LINURONFRYER JD; LUDWIG JW; SMITH PD et al.1980; WEED RES.; GBR; DA. 1980; VOL. 20; NO 2; PP. 111-116; ABS. FRE/GER; BIBL. 19 REF.Article