@inproceedings{TielenMollerVuik2019a,
  title         = {Efficient multigrid based solvers for {B}-spline {MPM}},
  author        = {Roel Tielen and Matthias M{\"o}ller and Kees Vuik},
  year          = {2019},
  month         = {jan},
  booktitle     = {Proceedings of the Second International Conference on the Material Point Method for Modelling Soil-Water-Structure Interaction},
  address       = {Cambridge, UK},
  url           = {http://mpm2019.eu/sites/default/files/mpm2019_paper_26.pdf}
}