1. Mutual phenomena of Jupiter's satellites;Aksnes;IAU Circ. No.,1973
2. Letter;Aksnes;Sky and Telescope,1973
3. Sur le calcul des éphémérides des quatre anciens satellites de Jupiter;Andoyer;Bull. Astron.,1915
4. Jovian satellite-satellite eclipses and occultations;Brinkmann;Icarus,1973
5. Mutual phenomena of Jupiter's satellites in 1973–1974;Brinkmann;Sky and Telescope,1973