1. Anderson, M. D., 1965, Through the Microscope, The Natural History Press, Garden City, NY.
2. Boyle, R., 1665, An Account of Freezing: New Experiments and Observations Touching Cold, John Crook, London.
3. Pringsheim, E. G., 1932, Julius Sachs: Founder of Modern Plant Physiology, 1832–1897, Verlag von Gustav Fischer, Jena.
4. Diller, K. R.
, 1996, “Pioneers in Cryobiology: Julius von Sachs (1832–1897),” Cryo-Letters, 17, pp. 201–212.
5. Sachs, J.
, 1860, “Crystal Formation during Freezing and Alteration of the Cell Membrane during Thawing of Juicy Plant Sections,” Berichte u¨ber die Verhandlungen der ko¨nigliich sa¨chsischen Gesellschaft der Wissenschaften zu Leipzig. Mathematisch-Physische Classe, 12, pp. 1–50.