Gass, Robert H. (california State University, Seiter, John S. (utah State University (1) Gass, Robert H, Seiter, John S (1) Arrigale, Lawrence M, Keels, Thomas H (1) Bennett, M. R. (university Of Sydney), Hacker, P. M. S. (1) Holzner, Steven (mit - Massachusetts Institute Of Technology; Cornell University) (1)