1. Orthohydrogen, Parahydrogen, and Heavy Hydrogen, Cambridge University Press, Cambridge, 1935;
2. Solid Hydrogen, Plenum, New York, 1983.
3. in McGraw-Hill Encyclopedia of Science and Technology, Vol. 8, 7th ed., McGraw-Hill, New York, 1992, p. 581.
4. Hydrogen Energy Economy, U. S. Congress House, Committee on Energy and Commerce, Subcommittee on Energy and Air Quality, University Press of the Pacific, Honolulu, 2005.
5. Galactic Interstellar Medium, Springer, Berlin, 1991.