61
Published 1988
American Chemical Society

62
Published 1990
American Chemical Society

63
Published 1994
American Chemical Society

64
Published 1999
American Chemical Society

65
Published 1999
American Chemical Society

66
Published 1999
American Chemical Society

67
Published 2000
American Chemical Society

68
Published 2000
American Chemical Society

69
Published 2000
American Chemical Society

70
Published 2000
American Chemical Society

71
Published 2001
American Chemical Society

72
Published 2009
American Chemical Society

73
Published 2009
American Chemical Society

75
Published 1980
American Chemical Society

76
Published 1985
American Chemical Society

77
Published 1987
American Chemical Society

78
Published 1999
American Chemical Society

79
Published 1999
American Chemical Society

80
Published 2000
American Chemical Society