1. Adaptive quadtree discretization for fluid flow problems;Schmidt,1991
2. Mesh adaptivity in compressible flow;Evans,1993
3. Fast, adaptive summation of point forces in the two-dimensional Poisson equation;Van Dommelen;J. Comp. Phys.,1989
4. A coupled Lagrangian particle tracking and quadtree-based adaptive multigrid method with application to shear layer evolution;Gáspár,1991