1
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

2
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

3
Published 1990
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

4
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

5
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

6
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

7
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

8
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

9
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

10
Published 1988
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

11
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...

12
Published 1989
American Chemical Society
...Chemical Congress of North America ( 1988, Toronto, Ontario, Canada)...