1. Pennington D. G., Swartz M. T. Assisted circulation and the mechanical heart. In: Braunwald E., ed. Heart disease: a textbook of cardiovascular medicine. 4th edition, Vol. I. Philadelphia: W. B. Saunders, 1992, pp. 535-50.
2. Donachy J. H., Landis D. L., Rosenberg G., et al. Design and evaluation of a left ventricular assist device: the angle port pump. In: Unger F, ed. Assisted circulation. Berlin, Springer Verlag, 1979, pp. 101-110.