G. Klaess

[Haemodynamics, oxygen demand and oxygen uptake of the heart during isovolaemic haemodilution (author's transl)].

D. Kettler, K. Hellberg, R. D. de Vivie, 1976, Der Anaesthesist.

Prevention of heart failure in dogs during arterial hypoxaemia by means of intra-aortic balloon pumping.

H. Sonntag, D. Kettler, K. Hellberg, 1974, Resuscitation.