M. Khalid Khan Mats F. Nilsson Bengt R. Danielsson Ewert Bengtsson Fully Automatic Heart Beat Rate Determination in Digital Video Recordings of Rat Embryos. 27-37 2008 MDA http://dx.doi.org/10.1007/978-3-540-70715-8_3 conf/massdata/2008 db/conf/massdata/mda2008.html#KhanNDB08