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21
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22
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23
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24Published 1992“...HD 9502 .C32 .C212...”
Book -
25
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26
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27
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28
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29
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30
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31
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32Published 1990“...HF 1456.5 .E825 .C0958...”
Conference Proceeding Book -
33
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34
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35Published 1988“...HD 3850 .P965...”
Book -
36
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37
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38
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39
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40