1
published 2002
Journal
2
published 1996
Journal
3
published 1992
Journal
4
published 1991
Journal
6
published 1978
Journal
7
published 1967
Journal
8
published 1965
Conference Proceedings Journal
9
published 1954
Journal
10
published 1953
Journal
11
published 1948
Journal
12
published 1920
Journal