Books

J'observe le Ciel Profond avec une lunette de 60 mm, ( = deep-sky observing with a 60 mm refractor), Jean-Raphaël GILIS, Broquet, inc. (Canada - in French).

Articles

More photography with a small refractor, Hubert A. ENTROP, Sky and Telescope, October, 1983, p 369 to 371 

Deep-Sky drawing with " Guide ", Jean-Raphaël GILIS, Ciel Extrême N°23, October 2001, p 20 to 22