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by Frank, Harvey A.
by Robert F. Nyvall (University of Minnesota)
by Michel, Jean-Pierre
by Pappas, Theodore N.; Eubanks, Steve; Chekan, Edward G.; et al.
by University of Washington
by Freedman, Jonathan
by Orr, Leslie C.
by Makoto Takeo (Department of Physics, Portland State University, USA)
by Judy Giles (York St. John University); Timothy Middleton (Bath Spa University)
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