1. Range of first-breath ventilatory responses to added mechanical loads in naive men;Axen;J. Appl. Physiol.,1979
2. The ability of man to detect added non-elastic loads to breathing;Bennett;Clin. Sci.,1962
3. The ability of astmatics to detect added resistive loads;Burki;Am. Rev. Respir. Dis.,1978
4. The ability of man to detect added elastic loads to breathing;Campbell;Clin. Sci.,1961
5. The relationship of the sensation of breathlessness to the act of breathing;Campbell,1966