Roy E. Allen: "Mechanical Patternmaker." In: Jasia
Reichardt (ed.): Cybernetic Serendipity. The Computer and the
Arts. London: Studio International, 1968, p. 40.
D.
P. Henry: "The Henry Drawing Computer." In: Jasia
Reichardt (ed.): Cybernetic Serendipity. The Computer and the
Arts. (Special Issue of Studio International). London:
Studio International, 1968, p. 50.
Ivan
Moscovitch: "The Pendulum Harmonograph: a Drawing Machine." In: Jasia Reichardt (ed.):
Cybernetic Serendipity. The Computer and the Arts. London:
Studio International, 1968, p. 48.
John
Ravilious: "Limitations and general design features of a
pendulum drawing machine." In: Jasia
Reichardt (ed.): Cybernetic Serendipity. The Computer and the
Arts. London: Studio International, 1968, p. 49.
S.
Tolansky: "Complex Curvilinear Designs from Pendulums."
Leonardo 2 (1969), pp. 267274. [Reprinted
in: Frank J. Malina (ed.):
Visual Art, Mathematics and Computers: Selections from the Journal
LEONARDO. Oxford: Pergamon Press, 1979, pp. 6168.]