@unpublished{silvis-sc18b-pres,
    author = {Silvis, M. H. and Verstappen, R.},
    date = {2018-04-06},
    title = "Symmetry constraints for the modeling and numerical simulation of turbulent flows",
    location = {\textit{Symmetry and Computation}, Marseille, France, April 3--7, 2018},
}