International Congress of Slavists, 7th, Warsaw, 1973

• Dutch contributions to the seventh International Congress of Slavists, Warsaw, August 21-27, 1973
• Istoriia, kul'tura, ėtnografiia i fol'klor slavianskikh narodov
• Referati za sedmi medunarodni kongres slavista u Varšavi
• Slavianskie literatury
• Slavianskoe iazykoznanie