1
Publicado em: 1956
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 100
2
Publicado em: 1955
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 68
3
Publicado em: 1956
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 87
4
Publicado em: 1946
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 284
5
Publicado em: 1939
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 175
6
Publicado em: 1945
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 275
7
Publicado em: 1939
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 180
8
Publicado em: 1944
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 260
9
Publicado em: 1936
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 122
10
Publicado em: 1952
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 42
11
Publicado em: 1957
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 110
12
Publicado em: 1952
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 45
13
Publicado em: 1954
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 66
14
Publicado em: 1947
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 296
15
Publicado em: 1938
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 144
16
Publicado em: 1945
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 273
17
Publicado em: 1945
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series I 274
18
Publicado em: 1956
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 99
19
Publicado em: 1956
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 86