2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Istanbul, Turkey. volume 4; IEEE: 3913-3916; ISBN 978-0-7803-7211-5
2001,
Heikkinen P, Kosma VM, Huuskonen H, Komulainen H, Kumlin T, Penttila I, Vaananen A, Juutilainen J