1. West, J.B., Respiratory Physiology: The Essentials, Philadelphia: Lippincott Williams and Wilkins, 2008, 8th edition.
2. Pochekutova, I.A., Gorbik, N.M., Kulakov, Yu.V., et al., A revision of diagnostic value of the duration of forced expiratory tracheal noises in diagnosis of bronchial obstruction, Prakt. Med., 2011, vol. 51, no. 3, p. 110.
3. Swanney, M.P., Stanton, J., Wilson, K., et al., Forced expiratory time measured with spirometry and auscultation for identifying airway obstruction, Respirology, 2009, vol. 14, suppl. 1, AO 08.
4. Chernozemov, V.G., Gudkov, A.B., and Popova, O.N., Evaluation of airway patency in school children with scoliosis in the European North of Russia, Ekol. Chel., 2005, no. 11, p. 12.
5. Roy, J., Chapin, H.B., and Favre, J., Studies in pulmonary ventilatory function: Vital capacity, first one-second capacity, and forced expiratory curves in patients with asthma: Comparative evaluation of methods, J. Allergy, 1955, vol. 26, no. 6, p. 490.