Porieva, H.S., Ivanko, K.O., Semkiv , C.I. and Vaityshyn , V.I. 2021. Investigation of Lung Sounds Features for Detection of Bronchitis and COPD Using Machine Learning Methods. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia. 84 (Mar. 2021), 78-87. DOI:https://doi.org/10.20535/RADAP.2021.84.78-87.