Show 100 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="Veldeman, Roger" or (type any "bookEditor journalEditor issueEditor" and editor="Veldeman... Add to list PhD Thesis "Chalaropsis populi" nova species : oorzaak van schorsnecrosen op populier / Roger Veldeman. Roger Veldeman (1975)