Disambiguation evidence for Harvard College Observatory Annals via surface form
"Harvard College Observatory Circular"
Triples (1)
Triples where some other subject referred to this entity
as "Harvard College Observatory Circular".
1912 paper on periods of 25 Cepheid variables in the Small Magellanic Cloud
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publishedIn
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"Harvard College Observatory Circular"
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↳ resolves to Harvard College Observatory Annals