@Article{ars-4-79-2006,
AUTHOR = {Jelen, M. and Biebl, E. M.},
TITLE = {Multi-frequency sensor for remote measurement of breath and heartbeat},
JOURNAL = {Advances in Radio Science},
VOLUME = {4},
YEAR = {2006},
PAGES = {79--83},
URL = {http://www.adv-radio-sci.net/4/79/2006/},
ISSN = {1684-9965}
}