| Schenkel, R.; Schenkel, L., 1969. Ecology and behaviour of the black rhinoceros (Diceros bicornis L): a field study. Hamburg and Berlin, Paul Parey (Mammalia Depicta), pp. 1-101, figs. 1-27, tables 1-7
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| Schenkel, R.; Schenkel, L., 1969. The Javan rhinoceros (Rh. sondaicus Desm.) in Udjung Kulon Nature Reserve: its ecology and behaviour: Field study 1967 and 1968. Acta Tropica 26 (2): 97-135, figs. 1-9, tables 1-9
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| Schenkel, R.; Schenkel, L., 1969. The Javan rhinoceros (Rh. sondaicus Desm.) in Udjung Kulon Nature Reserve: its ecology and behaviour: Field study 1967 and 1968. Acta Tropica 26 (2): 97-135, figs. 1-9, tables 1-9
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| Schenkel, R., 1966. Zum Problem der Territorialitat und des Markierens bei Saugern - am Beispiel des schwarzen Nashorns und des Lowens. Zeitschrift fur Tierpsychologie 23 (5): 593-626, figs. 1-11
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