Turunen, M. P. K., Suhag, S. & Kivilahti, J., 2004, (National Conference on Electronics Circuits and Communications Systems (ECCS-2004), 23.-24.September 2004, Patiala, India).
Turunen, M. P. K., Laurila, T., Solehmainen, K. & Kivilahti, J. K., 2004, Espoo, p. 42, (Electronics Production Technology publication series; no. HUT-EPT-10).