Disambiguation evidence for A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae via surface form

"“Extra-galactic Nebulae”"

Triples (1)

Triples where some other subject referred to this entity as "“Extra-galactic Nebulae”".

Hubble sequence → describedInWork →
"“Extra-galactic Nebulae”"
↳ resolves to A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae
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