Title: Jules Janssen's "Revolver photographique" and its British derivative, "The Janssen slide"
Authors: Launay, F. & Hingley, P. D.
Journal: Journal for the History of Astronomy (ISSN 0021-8286), Vol. 36, Part 1, No. 122, p. 57 - 79 (2005)
Bibliographic Code: 2005JHA....36...57L