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- [43] Turbulent outflows from [WC]-type nuclei of planetary nebulae 1.: BD+30°3639 and other [WC 9-10] stars ASTRONOMY & ASTROPHYSICS, 2000, 364 (02): : 597 - 612
- [44] THE PAST AND PRESENT INFRARED-SPECTRUM OF BD+30-DEGREES-3639 ACTA ASTRONOMICA, 1993, 43 (04): : 409 - 414
- [45] NEAR-INFRARED AND MIDINFRARED IMAGING OF THE PLANETARY-NEBULAE BD +30-DEGREES-3639 AND IC-418 ASTROPHYSICAL JOURNAL, 1993, 413 (01): : 304 - 316
- [46] THE STRUCTURES OF AND DISTANCES TO BD +30-DEGREES-3639 AND NGC-6572 ASTROPHYSICAL JOURNAL, 1989, 346 (01): : 243 - 250
- [47] PHOTOIONIZATION MODELS OF LUMINESCENCE AND PHYSICAL CHARACTERISTICS OF PLANETARY-NEBULAE - BD+30-DEGREES-3639 AND NGC-7293 ASTRONOMICHESKII ZHURNAL, 1991, 68 (06): : 1197 - 1210
- [48] High-resolution imagery of BD +30 degrees 3639 and its dusty halo ASTRONOMICAL JOURNAL, 1997, 113 (06): : 2147 - &
- [50] SPATIAL-DISTRIBUTION OF DUST IN PLANETARY-NEBULAE NGC 6537, IC 418, BD + 30DEGREES 3639 AND NGC 6572 ASTRONOMY & ASTROPHYSICS, 1976, 50 (03): : 389 - 393