ISBN 0-684-82821-9. Doc Draper & His Lab. History. The Charles Stark Draper Laboratory, Inc. [2012-05-30]. (原始内容存档于2012-05-27). Charles Draper: Gyroscopic Apparatus
Chimie et de Physique, 3rd series, vol. 24, no. 6, pages 442-459. George B. Kauffman and Robin D. Myers (1998)"Pasteur's resolution of racemic acid: A sesquicentennial