1. (2022, October 25). 2021 Commission Work Programme—From Strategy to Delivery. Available online: https://ec.europa.eu/commission/presscorner/detail/en/ip_20_1940.
2. Romik, D., Czajka, I., and Gołaś, A. (2016). Numerical Study of the Effect of Selected Design Parameters on the Aerodynamic Noise of a Radial Fan, Institute of Rock Mechanics Polish Academy of Sciences. (In Polish).
3. Engel, Z. (2001). Environmental Protection against Vibrations and Noise, Polish Scientific Publishers. (In Polish).
4. Fortuna, S. (1999). Fans. Theoretical Basis, Structural and Operational Issues and Application, Techwent Publishing House. (In Polish).
5. Majcher, M. (2021). Numerical Analysis of Three-Dimensional Flows in Key Components of Axial Fans. [Ph.D. Thesis, Military University of Technology]. (In Polish).