1. Chronic Pulmonary Emphysema. Physiopathology and Treatment;Segal,1953
2. Mechanical Coughing: Studies on Physical Methods of Producing High Velocity Flow Rates During the Expiratory Cycle;Barach;Trans. Assn. of Am. Phys.,1951
3. Physical Methods Simulating Mechanisms of the Human Cough;Barach;J. Applied Physiol.,1952
4. Physical Methods Simulating Mechanisms of the Human Cough: Elimination of Radiopaque Material from the Bronchi of Dogs;Bickerman;J. Applied Physiol.,1952
5. The Principles and Technic of Operation of the Exsufflator;Barach;Am. Pract. and Dig. of Trtmnt.,1952