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21Published 1978“...HE 8689.9 .A7 .B863...”
Book -
22
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23Published 1982“...HD 9016 .A2 .F686...”
Book -
24
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25
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26
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27
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28
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29Published 1985“...HD 5708.67 .A35 .U56...”
Book -
30
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31
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32Published 1977“...HF 1417 .E96...”
Conference Proceeding Book -
33
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34Published 1985“...HC 412 .D498...”
Book -
35Published 1985“...HQ 1726 .M678...”
Book -
36
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37
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38
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39
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40