1. Bacchus, P. 2005, Paul Muller (1910–2000), this volume.
2. Becker, E. 1896a, Ann. Kaiserl. Univ.-Sternw. Strassburg, 1. Serie, 1, I–XVII.
3. Becker, E. (Ed.) 1896b, Ann. Kaiserl. Univ.-Sternw. Strassburg, 1. Serie, 1, XCVIII + 350 pp.
4. Comerón, F. 2004, Observing in Service Mode: The Experience at the European Southern Observatory, in Organizations and Strategies in Astronomy 5, Ed. A. Heck, Kluwer Acad. Publ., Dordrecht, 141–158.
5. Couder, A. 1936, L’Objectif du Grand Réfracteur de Strasbourg — Retouche et Nouvelle Étude — Compensation de la Biréfringence, Ann. Obs. Strasbourg III, 113–134.