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3. L. Vegard and K. Sollesnes, Phil. Mag. 4, 985 (1927).PHMAA40031-8086
4. Table II has been deposited as Document No. 9431 with the ADI Auxiliary Publication Project, Photoduplication Service, Library of Congress, Washington 25, D.C. A copy may be secured by citing the document number and remitting $1.25 for photoprints, or $1.25 for 35‐mm microfilm. Advance payment is required. Make check or money order payable to: Chief, Photoduplication Service, Library of Congress.
5. International Tables for X‐Ray Crystallography, N. F. M. Henry and K. Lonsdale, Eds. (Kynoch Press, Birmingham, England, 1962), Vol. 3, pp. 202 and 203.