Libraries and archives
Beinecke Rare Book and Manuscript Library, Yale University
University of Padova library
Perseus digital library, Tufts University.
The knot atlas, University of Toronto.
Catalogue of illuminated manuscripts, British Library.
Aberdeen bestiary, Univeristy of Aberdeen.
Molecular cell biology, 4th edition. Harvey Lodish, Arnold Berk, S Lawrence Zipursky, Paul Matsudaira, David Baltimore, and James Darnell.