Piechota, P., Synowiec, P., Wędrychowicz, W., Wróblewska, E., & Andruszkiewicz, A. (2023). Ultrasonic flow measurement under non-standard conditions.  Analysis of the influence of basic hydraulic elements disturbing  the flow on the measurement result. Instal, 5, 12-18. https://doi.org/10.36119/15.2023.5.2