Determination of the helium abundances in galactic planetary nebulae.
| Autor: | Havrylova, N. V.1 natalya@astro.franko.lviv.ua |
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| Zdroj: | Astronomical & Astrophysical Transactions. 2003, Vol. 22 Issue 6, p833-836. 4p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
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