3
Published in 1997
doi: 10.1016/S0169-1317(96)00034-8
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journal article online
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5
Published in 1992
doi: 10.1016/0169-1317(92)90005-8
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journal article online
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6
Published in 1987
doi: 10.1016/0883-2927(87)90043-6
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journal article online
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9
Published in 1985
doi: 10.1016/0013-7952(85)90009-2
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conference paper or compendium article online
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10
Published in 1983
monograph
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11
Published in 1983
monograph
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14
17
Published in 1984
monograph
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