| LC control no. | n 84802834 |
|---|---|
| Personal name heading | Heesch, Heinrich |
| Found in | LCCN 74-442841: His Untersuchungen zum Vierfarbenproblem, 1969 (hdg.: Heesch, Heinrich) LC data base, 6-28-84 (hdg.: Heesch, Heinrich) His Gesammelte Abhandlungen, c1986: t.p. (Heinrich Heesch) p. i (b. 6-25-06, Kiel) |
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