Jonathan Amos: Solar Orbiter: Sun mission blasts off. In: BBC News. 10. Februar 2020, abgerufen am 30. November 2022: „"We've had to develop lots of new technologies in order to make sure that the spacecraft can survive temperatures of up to 600C," said Dr Michelle Sprake, a systems engineer with European aerospace manufacturer Airbus. "One of the coatings that makes sure the spacecraft doesn't get too hot is actually made out of baked animal bones," she told BBC News.“
materialarchiv.ch
Elfenbeinschwarz auf materialarchiv.ch, abgerufen am 15. November 2017.
Jeanne Yacoubou: Is Your Sugar Vegan? An Update on Sugar Processing Practices. In: Vegetarian Journal. 26. Jahrgang, Nr.4. The Vegetarian Ressource Group, Baltimore MD 2007, S.16–20 (vrg.org [PDF; abgerufen am 4. April 2007]).