Klinge, H.; Rai, H.: Professor Harald Sioli: A commemoration. Tropical Ecology 23 (1), pp. VII - X (1982)

Lampert, W.: Further studies on the inhibitory effect of the toxic blue-green Microcystis aeruginosa on the filtering rate of zooplankton. Archiv für Hydrobiologie 95 (1/4), pp. 207 - 220 (1982)

Rai, H.; Hill, G.: On the nature of the ecological cycle of Lago Janauari: a Central Amazonian Ria/Varzea lake. Tropical Ecology 23 (1), pp. 1 - 50 (1982)