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1by Birnie, C.“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
Published 1974
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2Published 1973“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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3Published 1973“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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4Published 1973“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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5Published 1974“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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6Published 1974“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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7Published 1974“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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8Published 1974“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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9Published 1974“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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10Published 1974“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
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11by Agrawal, S. K.“...Pennsylvania State University, Pennsylvania Transportation Institute,...”
Published 1977
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