@article{14181, author = {Miroslav Kuchta and Magne Nordaas and Joris Verschaeve and Mikael Mortensen and Kent-Andre Mardal}, title = {Preconditioners for saddle point systems with trace constraints coupling 2D and 1D domains}, year = {2016}, journal = {SIAM Journal of Scientific Computing}, volume = {38}, publisher = {SIAM}, }