Special issue - Frontiers in seagrass research: A challenge of the new millennium in honour of professor Dr C. Den Hartog, founder editor of aquatic botany
W. Van Vierssen, Special issue - Frontiers in seagrass research: A challenge of the new millennium in honour of professor Dr C. Den Hartog, founder editor of aquatic botany, AQUATIC BOT, 65(1-4), 1999, pp. 1-3