Article Rohr, René R.J. (1989)
The universal sundials of Jacques Ozanam. Antiquarian Horology and the Proceedings of the Antiquarian Horological Society (pp. 171-177). (/isis/citation/CBB000044333/) unapi

Article Rohr, René R.J. (1986)
Les cadrans solaires universels de Jacques Ozanam. Centaurus: International Magazine of the History of Mathematics, Science, and Technology (pp. 165-177). (/isis/citation/CBB000031041/) unapi

Article Rohr, René R.J. (1986)
A sun, moon, and tidal dial. Translated by A. R. Somerville. Antiquarian Horology and the Proceedings of the Antiquarian Horological Society (pp. 227-232). (/isis/citation/CBB000047090/) unapi

Book Rohr, René R.-J. (1982)
Die Sonnenuhr: Geschichte, Theorie, Funktion. (/isis/citation/CBB000024908/) unapi

Article Rohr, René R.-J. (1980)
A unique Greek sundial recently discovered in central Asia. Journal of the Royal Astronomical Society of Canada (pp. 271-278). (/isis/citation/CBB000013899/) unapi

Article Louis Janin (17 Oct. 1897-29 Dec. 1978) (1979). Journal for the History of Arabic Science (pp. 85-87). (/isis/citation/CBB000011744/) unapi

Article Rohr, René, R. J.; Janin, Louis (1975)
Deux astrolabes-quadrants turcs. Centaurus: International Magazine of the History of Mathematics, Science, and Technology (pp. 108-124). (/isis/citation/CBB000015028/) unapi