@article{HKRR08,
 author = {Hartmann, O. and K\"{u}hnemann, M. and Rauber, T. and R\"{u}nger, G.},
 title = {{An Adaptive Extension Library for Improving Collective Communication Operations}},
 journal = {Concurrency and Computation: Practice and Experience},
 volume = {20},
 number = {10},
 pages = {1173--1194},
 year = {2008},
 issn = {1532-0634 (Online), 1532-0626 (Print)},
 publisher = {Wiley Interscience},
 doi = {10.1002/cpe.1263},
}