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21
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22
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23Published 1979“...HV 483 .S678 p...”
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24
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25
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26
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27
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28Published 1976“...HG 3821 .I61 m...”
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29
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30
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31
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32
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33Published 1981“...HD 1058 .H388...”
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34
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35
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36
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37
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38
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39
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40