Bogus dust screens from well-mixed exponential discs in galaxiesBruce G. ElmegreenDavid L. Block1999Mon. Not. R. Astron. Soc.
Macromolecules, very small grains, and large dust particles in the whirlpool galaxy M51 and its companion: A unified viewDavid L. BlockBruce G. Elmegreenet al.1997Astrophysical Journal