Feldman Albert, Beetz Charles, Klocek Paul, Lu Grant
National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
Advanced Technology Materials, 7 Commerce Dr., Danbury, CT 06810.
J Res Natl Inst Stand Technol. 1993 May-Jun;98(3):375-381. doi: 10.6028/jres.098.029.