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