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The chemical gradient of oxygen in the Galaxy from planetary nebulae

✍ Scribed by M. Perinotto; L. Morbidelli

No coin nor oath required. For personal study only.

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Chemical Composition of the Planetary Ne

✍ PAGE, T. L. 📂 Article 📅 1936 🏛 Nature Publishing Group 🌐 English ⚖ 189 KB

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