Thornton, Ian W. B.; Compton, Stephen G.; Wilson, Craig N. (1996). "The role of animals in the colonization of the Krakatau Islands by fig trees (Ficus species)". Journal of Biogeography. 23 (4): 577–592. Bibcode:1996JBiog..23..577T. doi:10.1111/j.1365-2699.1996.tb00019.x.
Compton, S. G.; Thornton, I. W. B.; New, T. R.; Underhill, L. (19 December 1988). "The Colonization of the Krakatau Islands by Fig Wasps and Other Chalcids (Hymenoptera, Chalcidoidea)". Philosophical Transactions of the Royal Society B: Biological Sciences. 322 (1211): 459–470. Bibcode:1988RSPTB.322..459C. doi:10.1098/rstb.1988.0138.
Walker, J. S. (2007). "Dietary specialization and fruit availability among frugivorous birds on Sulawesi". Ibis. 149 (2): 345–356. doi:10.1111/j.1474-919X.2006.00637.x.
Rawlinson, P; Zann, R; van Balen, S; Thornton, I (1992). "Colonization of the Krakatau Islands by Vertebrates". GeoJournal. 28 (2, Krakatau – a Century of Change): 225–231. doi:10.1007/BF00177236. S2CID189887589.
harvard.edu
ui.adsabs.harvard.edu
Thornton, Ian W. B.; Compton, Stephen G.; Wilson, Craig N. (1996). "The role of animals in the colonization of the Krakatau Islands by fig trees (Ficus species)". Journal of Biogeography. 23 (4): 577–592. Bibcode:1996JBiog..23..577T. doi:10.1111/j.1365-2699.1996.tb00019.x.
Compton, S. G.; Thornton, I. W. B.; New, T. R.; Underhill, L. (19 December 1988). "The Colonization of the Krakatau Islands by Fig Wasps and Other Chalcids (Hymenoptera, Chalcidoidea)". Philosophical Transactions of the Royal Society B: Biological Sciences. 322 (1211): 459–470. Bibcode:1988RSPTB.322..459C. doi:10.1098/rstb.1988.0138.
Baptista, L.; Trail, P.; Horblit, H.; Kirwan, G. M.; Garcia, E. (2019). del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David A; de Juana, Eduardo (eds.). "Pink-necked Green-pigeon (Treron vernans)". Handbook of the Birds of the World Alive. Barcelona: Lynx Edicions. Retrieved 20 February 2019.
Baptista, L.; Trail, P.; Horblit, H. (2019). del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David A; de Juana, Eduardo (eds.). "Pigeons, Doves (Columbidae)". Handbook of the Birds of the World Alive. Barcelona: Lynx Edicions. Retrieved February 26, 2019.
Rawlinson, P; Zann, R; van Balen, S; Thornton, I (1992). "Colonization of the Krakatau Islands by Vertebrates". GeoJournal. 28 (2, Krakatau – a Century of Change): 225–231. doi:10.1007/BF00177236. S2CID189887589.