Original language | English (US) |
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Pages (from-to) | 87-90 |
Number of pages | 4 |
Journal | Journal of Combinatorial Theory, Series A |
Volume | 38 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1985 |
Bibliographical note
Funding Information:* Partially supported by NSF Grant MCS 8105188. t Partially supported by NSF Grant MCS 8102237.