Halepas, Steven; Hamchand, Randy; Lindeyer, Samuel E. D.; Brückner, Christian (2017). "Isolation of Biliverdin IXα, as its Dimethyl Ester, from Emu Eggshells". Journal of Chemical Education. 94 (10): 1533–1537. Bibcode:2017JChEd..94.1533H. doi:10.1021/acs.jchemed.7b00449.
harvard.edu
ui.adsabs.harvard.edu
Halepas, Steven; Hamchand, Randy; Lindeyer, Samuel E. D.; Brückner, Christian (2017). "Isolation of Biliverdin IXα, as its Dimethyl Ester, from Emu Eggshells". Journal of Chemical Education. 94 (10): 1533–1537. Bibcode:2017JChEd..94.1533H. doi:10.1021/acs.jchemed.7b00449.