[1]
D. Kowalski, M. Iwanek, B. Kowalska, P. Suchorab, M. Kwietniewski, and W. Duklewski, “Operational analysis of the innovative sewage manhole for gravity sewage networks”, Instal, no. 6, pp. 446–49, Jun. 2020, doi: 10.36119/15.2020.6.6.