1. Electronic Associates, Inc. Long Branch N.J. — TR-48 Analog omputer Reference Handbook — Publ. D800 2008 OA, 1964.
2. AMAHA, K., LIU, P., WEITZNER, S.W. and HARMEL, M.H.: Effect f Constant Chest Compression on the Mechanical and Physiological Performance of Different Ventilators. Anesthesiology 28:498, 1967.
3. ENGSTROM, C.G., and NORLANDER, O.P.: A New Method for the Analysis of Respiratory Work by Measurements of the Actual Power as a Function of Gas Flow, Pressure, and Time. Acta Anaesthesiol. Scand. 6:49, 1962.
4. WEITZNER, S.W. and URBAN, B.J.: A New Ventilator Utilizing luid Logic. J.A.M.A. 207:1126–1130, 1969.
5. URBAN, B.J. and WEITZNER, S.W.: Analogue Computation for Res iratory Mechanics. Progress in Anesthesiology: Proceedings Fourth World Congress of Anaesthesiologists. Edited by Boulton, T.B., et al., Excerpta Medica Foundation, Ansterdam, 1970. pp 611–617.