Show 250 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="VAN DUCK, R*" or (type exact bookEditor and editor="VAN DUCK, R*") Add to list Conference Paper C1 14th Intern. Conference of Plant Growth Substances, Amsterdam, 1991. M DE PROFT, Herman De Pooter and R VAN DUCK