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61Published 1993“...HD 9674 .N52 .I62...”
Book -
62
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63
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64Published 1993“...HB 853 .A9 .F771...”
Book -
65Published 1978“...H 62.5 .O3 .P222...”
Conference Proceeding Book -
66
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67Published 1989“...HQ 1064 .N5 .P964...”
Book -
68
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69
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70
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71Published 1992“...HC 670 .E5 .N5328 m...”
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72
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73
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74
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75Published 1969“...HC 622 .N277 e...”
Conference Proceeding Book -
76Published 1987“...H 62.5 .N5 .S986...”
Conference Proceeding Book -
77
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78Published 1965“...HC 623 .D498...”
Book -
79
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80Published 1995“...HE 5614.5 .N5 .S995...”
Book