Abstract
This is an accepted article with a DOI pre-assigned that is not yet published.
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𝕏Authors
Nils-Arvid Bringeus (Lund University)Günter Wiegelmann (Universität Münster)
Issue
- This article is not a part of any issues.
Publication details
| Pages | 6-13 |
|---|---|
| Accepted on | 1971-08-31 |