P. J. Patel, D. Diwan, K. A. Patel, S. Ranga, N. J. Modi, and S. Dumasia, “Multi Feature fusion for COPD Classification using Deep learning algorithms”, J Integr Sci Technol, vol. 12, no. 4, p. 780, Dec. 2023, doi: 10.62110/sciencein.jist.2024.v12.780.