Maksim Säkki

Individual changes in human EEG caused by 450 MHz microwave modulated at 40 and 70 Hz

Jaan Kalda, Hiie Hinrikus, Maie Bachmann, 2007 .

The distribution of low-variability periods in human heartbeat dynamics

Jaan Kalda, M. Laan, J. Kalda, 2004 .