1984 193 p., num. figs, paperbound. Published in: Helgoländer Meeresuntersuchungen. With author's (C. van den Hoek) dedication.Contains 11 papers on seaweed biogeography.
1911 xiv, [2], 109, 20, 32, 22, 19, 23, 31, 23 p., num. figs, pls & maps, small 4to, paperbound (Front cover somewhat soiled). Conseil Permanent International pour l'Exploration de la Mer. Rapports et Procès-verbaux des Réunions Volume XIII. In German and English.Other papers by: Ehrenbaum / Masterman / Trybom & Johansen.