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Photometric studies of spiral structure. I - The disks and arms of six SB I and SC I galaxies
F. Schweizer
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Gravitational collapse in dust lanes and the appearance of spiral structure in galaxies
Bruce G. Elmegreen
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The extragalactic distance scale. VI - Distances of 458 spiral galaxies from tertiary indicators
G. de Vaucouleurs
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Extragalactic Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory. [PDF]
Aalto S+7 more
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Gravitational Hamiltonian Systems and the Retarded Gravity Inequality. [PDF]
Yahalom A.
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