E. Eckhardt

The acoustics of rooms. Reverberations

E. Eckhardt, 1923 .

Intra-aortic balloon counterpulsation in cardiogenic shock.

E. Eckhardt, 1977, Heart & lung : the journal of critical care.

A BRIEF HISTORY OF THE GRAVITY METHOD OF PROSPECTING FOR OIL

E. Eckhardt, 1940 .