Weber, Michael Edward2014-03-142014-03-141995etd-03122009-041829http://hdl.handle.net/10919/415267, 7, 7, 7 leavesBTDapplication/pdfenIn CopyrightLD5655.V855 1995.W434Thesishttp://scholar.lib.vt.edu/theses/available/etd-03122009-041829/