1. A. Dürer, Unterweysung der messung mit.., 1st ed. 1525, 2nd ed. 1538, Hieronymus Formschneyder, Nüremberg, cited according to Albrecht Dürer's Unterweisung der Messung (Ed.: A. Peltzer), Munich, 1908.
2. J. Kepler, Harmonices Mundi Libri V, Lincii Austriae, Sumptibus Godofredi Tampachhii, Francof., 1519; German translation: Johannes Kepler, Gesammelte Werke, Vol. VI, Harmonice Mundi, (Ed.: Max Caspar), Beck, Munich, 1990.
3. Pentagon packing models for "all-pentamer" virus structures
4. Chemical mimicry of viral capsid self-assembly