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by Meyers, David; Walker, Elise Meyers
by Martin, David; Walker, David M.
by Parenteau, Shirley; Walker, David M.
by Resnick, Robert; Halliday, David; Walker, Jearl
by Walker, David E.
by Halliday, David; Resnick, Robert; Walker, Jearl
by Walker, Brian; Salt, David; Reid, Walter V.
by Halliday, David (Univ. of Pittsburgh); Resnick, Robert (Rensselaer Polytechnic Institute); Walker, Jearl (Cleveland State Univ.)