Dave's Amateur Astronomy Articles
- D. Kratz, ``Observing Planetary Nebulae,'' Deep Sky,
2 #1, 6--15, 1984.
- D. Kratz, ``Stars in Need: Symbiotic Variables,'' Deep Sky,
3 #2 , 14--19, 1985.
- D. Kratz, ``The Central Stars of Planetary Nebulae,''
Deep Sky, 4 #2 , 20--25, 1986.
Dave's Radiative Transfer
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