1
Published: 1971
Superior document: Results obtained with a danjon astrolabe at Herstmonceux 2
2
Superior document: Royal Observatory bulletins ...
3
Published: 1982
Superior document: Fundamental data for southern stars 7th list
4
Published: 1961-1966;, 1982-
Superior document: Royal Observatory bulletins number 36, 48, 85, 110