41
Published 1987
American Chemical Society

42
Published 1988
American Chemical Society

43
Published 1989
American Chemical Society

44
Published 1990
American Chemical Society

45
Published 1990
American Chemical Society

46
Published 1990
American Chemical Society

48
Published 1991
American Chemical Society

49
Published 1991
American Chemical Society

50
Published 1992
American Chemical Society

51
Published 1992
American Chemical Society

52
Published 1992
American Chemical Society

53
Published 1993
American Chemical Society

54
Published 1993
American Chemical Society

55
Published 1993
American Chemical Society

56
Published 1994
American Chemical Society

58
Published 1995
American Chemical Society

59
Published 1996
American Chemical Society

60
Published 1996
American Chemical Society