AN ELECTROSTATIC LENS FOR POLAR-ANGLE SELECTION OF PHOTOEMITTED ELECTRONSVAN HOOF HA.1981; J. PHYS. E; ISSN 0022-3735; GBR; DA. 1981; VOL. 14; NO 3; PP. 325-329; BIBL. 5 REF.Article

A NEW METHOD FOR NUMERICAL CALCULATION OF POTENTIALS AND TRAJECTORIES IN SYSTEMS OF CYLINDRICAL SYMMETRYVAN HOOF HA.1980; J. PHYS. E; ISSN 0022-3735; DNK; DA. 1980; VOL. 13; NO 10; PP. 1081-1089; BIBL. 10 REF.Article

THE EFFECT OF SOIL MOISTURE CONTENT ON THE ACTIVITY OF TRICHODORID NEMATODES.VAN HOOF HA.1976; NEMATOLOGICA; PAYS-BAS; DA. 1976; VOL. 22; NO 3; PP. 260-264; H.T. 1; ABS. ALLEM.; BIBL. 4 REF.Article

INFECTION PRESSURE OF POTATO VIRUS Y^NVAN HOOF HA.1979; NETHERL. J. PLANT PATHOL.; NLD; DA. 1979; VOL. 85; NO 1; PP. 31-37; ABS. DUT; BIBL. 4 REF.Article

IMAGING POLARIZER FOR THE VUV WITH SPHERICAL MIRRORSVAN HOOF HA.1980; APPL. OPT.; USA; DA. 1980; VOL. 19; NO 2; PP. 189-190; BIBL. 8 REF.Article

THE EFFECT OF TEMPERATURE ON THE TRANSMISSION OF TOBACCO RATTLE VIRUS IN TULIPS BY TRICHODORUS, USING THEAEBAIT-LEAF METHOD = L'EFFET DE LA TEMPERATURE SUR LA TRANSMISSION CHEZ LES TULIPES, PAR T. DU VIRUS DE LA RATTLE DU TABAC ETUDIEE EN UTILISANT LA METHODES DES FEUILLES APPATSVAN HOOF HA.1975; NEMATOLOGICA; PAYS-BAS; DA. 1975; VOL. 21; NO 1; PP. 104-108; ABS. ALLEM.; BIBL. 4 REF.Article

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DETERMINATION OF THE INFECTION PRESSURE OF POTATO VIRUS Y^NVAN HOOF HA.1977; NETHERL. J. PLANT PATHOL.; NLD; DA. 1977; VOL. 83; NO 3; PP. 123-127; ABS. DUT; BIBL. 6 REF.Article

THE BAIT LEAF METHOD FOR DETERMINING SOIL INFESTATION WITH TOBACCO RATTLE VIRUS-TRANSMITTING TRICHODORIDS.VAN HOOF HA.1976; NETHERL. J. PLANT PATHOL.; NETHERL.; DA. 1976; VOL. 82; NO 5; PP. 181-185; BIBL. 2 REF.Article

HET EFFECT VAN NEMATICIDEN OP HET VOORKOMEN VAN TABAKSRATELVIRUS IN ENKELE GEWASSEN = LES EFFETS DES NEMATICIDES DANS LA LUTTE CONTRE LE VIRUS DU RATTLE DU TABACVAN HOOF HA.1974; MEDED. FAC. LANDBOUWWET. RIJKSUNIV. GENT; BELG.; DA. 1974; VOL. 39; NO 2 PART. 2; PP. 1239-1246; ABS. ANGL.; BIBL. 1 P.1/2Article

NATURAL ELIMINATION OF TOBACCO RATTLE VIRUS IN TULIP "APELDOORN".VAN HOOF HA; SILVER CN.1976; NETHERL. J. PLANT PATHOL.; NETHERL.; DA. 1976; VOL. 82; NO 6; PP. 255-256; ABS. NETH.; BIBL. 4 REF.Article

STRAWBERRY LATENT RINGSPOT VIRUS-INFESTED FIELDS OF ROSA RUGOSA PRODUCE HEALTHY CUTTINGS BUT DISEASED ROOTSTOCKS FOR STANDARD ROSES = PRODUCTION DE BOUTURES SAINES ET DE PORTE-GREFFES MALADES DANS LES PLANTATIONS DE R. R. INFECTEES PAR LE VIRUS LATENT DES TACHES ANNULAIRES DU FRAISIERVAN HOOF HA; CARON JEA.1975; MEDED. FAC. LANDBOUWWET. RIJKSUNIV. GENT; BELG.; DA. 1975; VOL. 27; NO 2 PART. 2; PP. 759-763; H.T. 1; ABS. NEERL.; BIBL. 5REF.; (SYMP. INT. PHYTOPHARM. PHYTIATR. II; GENT; 1975)Conference Paper

THE EFFECT OF DD AND DAZOMET TREATMENTS ON NEMATODE POPULATIONS AT VARIOUS DEPTHS IN THE SOIL AND ON THE TRANSMISSION OF SOIL-BORNE TOBACCO RATTLE VIRUS TO GLADIOLUS.SEINHORST JW; VAN HOOF HA.1976; NETHERL. J. PLANT PATHOL.; NETHERL.; DA. 1976; VOL. 82; NO 6; PP. 215-230; ABS. NETH.; BIBL. 7 REF.Article

FLIGHT BEHAVIOUR OF THE APHID MYZUS PERSICAE DURING ITS MAIDEN FLIGHTHARREWIJN P; VAN HOOF HA; NOORDINK JPW et al.1981; NETH. J. PLANT PATHOL.; ISSN 0028-2944; NLD; DA. 1981; VOL. 87; NO 3; PP. 111-117; ABS. DUT; BIBL. 10 REF.Article

POSITION-SENSITIVE DETECTOR SYSTEM FOR ANGLE-RESOLVED ELECTRON SPECTROSCOPY WITH A CYLINDRICAL MIRROR ANALYSERVAN HOOF HA; VAN DER WIEL MJ.1980; J. PHYS. E; ISSN 0022-3735; GBR; DA. 1980; VOL. 13; NO 4; PP. 409-414; BIBL. 16 REF.Article

RELATION BETWEEN CONCENTRATION OF POTATO VIRUS Y^N AND ITS AVAILABILITY TO MYZUS PERSICAEDE BOKX JA; VAN HOOF HA; PIRON PGM et al.1978; NETHERL. J. PLANT PATHOL.; NLD; DA. 1978; VOL. 84; NO 3; PP. 95-100; ABS. NEERL.; BIBL. 7 REF.Article

TUMOURS OF BEGONIA AND SOME OTHER ORNAMENTALS, INDUCED BY CORYNEBACTERIUM FASCIANSVAN HOOF HA; HUTTINGA H; KNAAP A et al.1979; NETHERL. J. PLANT. PATHOL.; NLD; DA. 1979; VOL. 85; NO 3; PP. 87-98; ABS. DUT; BIBL. 15 REF.Article