Quaestiones geometricae in Euclidis et P. Rami stoicheiosin [last word in Gk. chars.] : quibus Geodaesiam adjecimus per usum radii geometrici ; sive brevis tractatio Perspectiva communi / a Petro Ryff. - Ryff, Petrus (Typis W. H. impensis Fran: Oxlad, 1665)