Prokhorov, M. , Ponomarenko, V. , Karavaev, A. , Kiselev, A. , Gridnev, V. (2009). 'Synchronization between the Slow Oscillations in the Human Cardiovascular System'. World Academy of Science, Engineering and Technology, Open Science Index 32, International Journal of Aerospace and Mechanical Engineering, 3(8), 417 - 421.