author = {V. Pillwein and S. Takacs},}
title = {{Smoothing analysis of an all-at-once multigrid approach for optimal control problems using symbolic computation}},
booktitle = {{Numerical and Symbolic Scientific Computing: Progress and Prospects}},
language = {english},
pages = {175--192},
publisher = {Springer Wien},
isbn_issn = {?},
year = {2011},
editor = {U. Langer and P. Paule},
refereed = {yes},
length = {18}