TY  - RPRT
TI  - A fast multigrid algorithm for energy minimization under planar density constraints.
AU  - Ron, D
AU  - Safro, I
AU  - Brandt, A
PY  - 2010
DO  - 10.1137/090771995
UR  - https://www.osti.gov/biblio/993687
ID  - 993687
ER  -