@article{M2AN_2019__53_1_249_0,
     author = {Liu, Yongxiang and Xu, Xuejun},
     title = {An optimized {Schwarz} method with relaxation for the {Helmholtz} equation: the negative impact of overlap},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {249--268},
     publisher = {EDP-Sciences},
     volume = {53},
     number = {1},
     year = {2019},
     doi = {10.1051/m2an/2018061},
     zbl = {1418.65190},
     mrnumber = {3937351},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2018061/}
}