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An extensive study of planetary nebulae with emission-line nuclei |
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| Authors: | Agnès Acker S?awomir K Górny Björn Stenholm |
| Institution: | (1) Observatoire de Strasbourg, 11, rue de l'université, F-67000 Strasbourg, France;(2) Nicolaus Copernicus Astronomical Center, ul. Rabia ska 8, PL-87-100 Toru, Poland;(3) Lund Observatory, Box 43, S-22100 Lund, Sweden |
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