@misc{katsaounis_flow_pattern_1987, 
author={Katsaounis, A.},
title={Flow pattern and pressure drop in tees},
year={1987},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Katsaounis, A.: Flow pattern and pressure drop in tees. Chemical Engineering Communications. 1987. vol. 54, 119-138.}}