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- [2] STUDY OF IRAS OBSERVATIONS OF NEWLY CLASSIFIED PLANETARY-NEBULAE ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1987, 68 (01): : 103 - 107
- [4] SPECTROSCOPIC OBSERVATIONS OF FAINT AND MISCLASSIFIED PLANETARY-NEBULAE ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1987, 68 (01): : 51 - 62
- [7] IMPROVED OBSERVATIONS OF FAINT PLANETARY-NEBULAE IN THE MAGELLANIC CLOUDS ASTROPHYSICAL JOURNAL, 1993, 417 (01): : 209 - 219
- [10] GROUND-BASED AND IRAS OBSERVATIONS OF COMPACT PLANETARY-NEBULAE ASTROPHYSICAL JOURNAL, 1986, 303 (01): : 451 - 464