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21
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22
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23
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24Published 1975“...HE 308 .T772...”
Book -
25
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26
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27Published 1977“...HE 333 .N532...”
Book -
28
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29
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30
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31Published 1980“...HE 336 .C9 .A512...”
Book -
32
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33
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34
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35
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36
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37
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38Published 1974“...HE 199.5 .O7 .I61...”
Conference Proceeding Book -
39
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40