L. Aners Nilsson; Lars Johnsson; Lydia Ralison; Emile Randrianjohany (Dec 1987). "Angraecoid Orchids and Hawkmoths in Central Madagascar: Specialized Pollination Systems and Generalist Foragers". Biotropica. 19 (4). The Association for Tropical Biology and Conservation: 310–318. Bibcode:1987Biotr..19..310N. doi:10.2307/2388628. JSTOR2388628.
harvard.edu
ui.adsabs.harvard.edu
L. Aners Nilsson; Lars Johnsson; Lydia Ralison; Emile Randrianjohany (Dec 1987). "Angraecoid Orchids and Hawkmoths in Central Madagascar: Specialized Pollination Systems and Generalist Foragers". Biotropica. 19 (4). The Association for Tropical Biology and Conservation: 310–318. Bibcode:1987Biotr..19..310N. doi:10.2307/2388628. JSTOR2388628.
jstor.org
L. Aners Nilsson; Lars Johnsson; Lydia Ralison; Emile Randrianjohany (Dec 1987). "Angraecoid Orchids and Hawkmoths in Central Madagascar: Specialized Pollination Systems and Generalist Foragers". Biotropica. 19 (4). The Association for Tropical Biology and Conservation: 310–318. Bibcode:1987Biotr..19..310N. doi:10.2307/2388628. JSTOR2388628.