@article{amai2,
author  = {Martin Henz and Yun Fong Lim and Seet Chong Lua and Xiao Ping Shi and J. Paul Walser and Roland H. C. Yap},
title   = {Solving Hierarchical Constraints over Finite Domains with Local Search},
journal = {Annals of Mathematics and Artificial Intelligence},
year = 2004,
month = mar,
number = 3-4,
volume = 40,
pages = {283--302},
}