قائمة السدم الكوكبية (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "قائمة السدم الكوكبية" in Arabic language version.

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Jacob، R.؛ Schönberner، D.؛ Steffen، M. (2013). "The evolution of planetary nebulae". Astronomy & Astrophysics. ج. 558: A78. arXiv:1307.6189. Bibcode:2013A&A...558A..78J. DOI:10.1051/0004-6361/201321532. ISSN:0004-6361.

Jacob، R.؛ Schönberner، D.؛ Steffen، M. (2013). "The evolution of planetary nebulae". Astronomy & Astrophysics. ج. 558: A78. arXiv:1307.6189. Bibcode:2013A&A...558A..78J. DOI:10.1051/0004-6361/201321532. ISSN:0004-6361.
Phillips، J. P. (2005). "The distances of highly evolved planetary nebulae". Monthly Notices of the Royal Astronomical Society. ج. 357 ع. 2: 619–625. Bibcode:2005MNRAS.357..619P. DOI:10.1111/j.1365-2966.2005.08676.x. ISSN:0035-8711.

Kohoutek، L. (1971). "New planetary nebula". Astronomy and Astrophysics. ج. 13: 493. Bibcode:1971A&A....13..493K.
Jacob، R.؛ Schönberner، D.؛ Steffen، M. (2013). "The evolution of planetary nebulae". Astronomy & Astrophysics. ج. 558: A78. arXiv:1307.6189. Bibcode:2013A&A...558A..78J. DOI:10.1051/0004-6361/201321532. ISSN:0004-6361.
Phillips، J. P. (2005). "The distances of highly evolved planetary nebulae". Monthly Notices of the Royal Astronomical Society. ج. 357 ع. 2: 619–625. Bibcode:2005MNRAS.357..619P. DOI:10.1111/j.1365-2966.2005.08676.x. ISSN:0035-8711.

Jacob، R.؛ Schönberner، D.؛ Steffen، M. (2013). "The evolution of planetary nebulae". Astronomy & Astrophysics. ج. 558: A78. arXiv:1307.6189. Bibcode:2013A&A...558A..78J. DOI:10.1051/0004-6361/201321532. ISSN:0004-6361.
Phillips، J. P. (2005). "The distances of highly evolved planetary nebulae". Monthly Notices of the Royal Astronomical Society. ج. 357 ع. 2: 619–625. Bibcode:2005MNRAS.357..619P. DOI:10.1111/j.1365-2966.2005.08676.x. ISSN:0035-8711.