@article{ash10:comana,
author = {Lauri Ahlroth and Andr{\'e} Schumacher and Harri Haanp\"a\"a},
journal = {Operations Research Letters},
number = {6},
pages = {522 - 526},
title = {On the power of lookahead in online lot-sizing},
volume = {38},
year = {2010},
}