1. Chemical Crystallography before X-ray Diffraction
2. H. Cardanus , De Subtilitate Libri XXI , Ex officina Michaelis Fezandat, et Roberti Granion , Paris , 1550
3. J. Kepler , Strena, seu de Nive Sexangula , apud Godefridum Tambach , Frankfurt on Main , 1611
4. A. I. Kitaigorodskii , Molecular crystals and Molecules , Academic Press , New York , 1973
5. How molecules stick together in organic crystals: weak intermolecular interactions