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1Published 1978“...HM 131 .U58...”
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2Published 1978“...HM 791 .U58 1977...”
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3Published 1982“...HQ 710 .S471...”
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4Published 1980“...HV 677 .N5 .A171...”
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5“...HB 850 .C182 1984...”
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6Published 1978“...H 62.5 .O3 .P222...”
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7Published 1969“...HC 622 .N277 e...”
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8Published 1987“...H 62.5 .N5 .S986...”
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9Published 2000“...HC 684 .Z9 .P6 .N277 2000...”
Conference Proceeding Book