@inproceedings{HRR_2021, 
doi = {10.23967/wccm-eccomas.2020.084}, 
url = {https://doi.org/10.23967%2Fwccm-eccomas.2020.084}, 
year = 2021,
publisher = {{CIMNE}}, 
author = {A. Heinlein and O. Rheinbach and F. Röver}, 
title = {Choosing the Subregions in Three-Level {FROSch} Preconditioners}, 
booktitle = {14th {WCCM}-{ECCOMAS} Congress}
}