1
2
Published in 1982
conference paper or compendium article
3
Published in 1981
conference paper or compendium article
4
Published in 1984
conference paper or compendium article
5
6
Published in 1984
conference paper or compendium article
7
Published in 1991
conference paper or compendium article
8
Published in 1981
technical report
9
Published in 1988
conference paper or compendium article