1. J. H. van’t Hoff,A Suggestion Looking to the Extension into Space of the Structural Formulas at Present Used in Chemistry. And a Note Upon the Relation Between the Optical Activity and the Chemical Constitution of Organic Compounds, inThe Foundations of Stereo Chemistry, Memoirs of Pasteur, Van’t Hoff, Lebel and Wislicenus, ed. by G. M. Richardson, American Book Co., New York,1901, p. 35. https://archive.org/details/foundationsofste00richrich.
2. J. A. Le Bel,On the Relations Which Exist Between the Atomic Formulas of Organic Compounds and the Rotatory Power of Their Solutions, inThe Foundations of Stereo Chemistry, Memoirs of Pasteur, Van’t Hoff, Lebel and Wislicenus, ed. by G. M. Richardson, American Book Co., New York,1901, p. 47. https://archive.org/details/foundationsofste00richrich.
3. G. E. McCasland,A New General System for the Naming of Stereoisomers, Chemical Astracts, Columbus,1953.