au.\*:("HANRAS J")
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LES FILMS AGRICOLES EN POLYETHYLENEHANRAS J.1972; PLAST. MOD. ELASTOMERES; FR.; DA. 1972; VOL. 24; NO 7; PP. 132-135Serial Issue
POSSIBILITES ET FREINS A L'EXTENSION DE L'EMPLOI DES PLASTIQUES EN AGRICULTURE DANS LES PAYS EN VOIE DE DEVELOPPEMENTHANRAS J.1980; CONGRESSO INTERNATIONAL DE PLASTICOS EM AGRICULTURA. 8. COMMUNICACOES/1980/LISBOA; PRT; LISBOA: ASSOCIACAO PORTUGUESA PLAST. AGRIC.; DA. 1980; VOL. 1; PP. 51-59; ABS. ENG/SPA/PORConference Paper
AGEING OF LOW DENSITY POLYETHYLENE FILMS FOR AGRICULTURAL USEHANRAS J.1976; THE WEATHERING OF PLASTICS AND RUBBER. PRI INTERNATIONAL SYMPOSIUM/1976/LONDON; GBR; LONDON: CHAMELEON PRESS; DA. 1976; PP. F4.1-F4.9Conference Paper
PLASTICULTURE ET HORTICULTURE.BRY A; HANRAS J.1976; OFF. PLAST. CAOUTCH.; FR.; DA. 1976; VOL. 23; NO 248; PP. 689-692Article