Sergysels, R., Willeput, R., Lenders, D., Vachaudez, J. P., Schandevyl, W., & Hennebert, A. (1979). Low frequency breathing at rest and during exercise in severe chronic obstructive bronchitis.

Sergysels, R., R. Willeput, D. Lenders, J P. Vachaudez, W. Schandevyl, و A. Hennebert. Low Frequency Breathing At Rest and During Exercise in Severe Chronic Obstructive Bronchitis. 1979.

Sergysels, R., et al. Low Frequency Breathing At Rest and During Exercise in Severe Chronic Obstructive Bronchitis. 1979.