Article ID: | iaor19912042 |
Country: | Netherlands |
Volume: | 31 |
Issue: | 2 |
Start Page Number: | 167 |
End Page Number: | 180 |
Publication Date: | Apr 1991 |
Journal: | Discrete Applied Mathematics |
Authors: | Goodman Jacob E., Pollack Richard |
There are several natural ways to extend the notion of the