1
Published: 1955
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 73
2
3
4
5
Notes and observations : note on the nature of Saturn's rings / [Fred A. Franklin and Allan F. Cook]
Published: 1958
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 142
6
Published: 1962
Superior document: Reprints / The Astronomical Observatory of Harvard College : Series II 185