@unpublished{silvis-burgers15a-pres,
    author = {Silvis, M. H. and Verstappen, R. W. C. P.},
    date = {2015-01-15},
    title = "Going beyond eddy viscosity: Finding a minimal representation of subgrid-scale stresses in large-eddy simulation",
    location = {\textit{Burgers Day}, J. M. Burgerscentrum, Delft, The Netherlands, January 15, 2015},
}