Khorev Vladimir Sergeevich RussiaSaratovSaratov State University, 410012, Russia, Saratov, Astrakhanskaya street, 83zergs@inbox.ru Author's articles Recovery of Models of Time-delay Systems from Short Experimental Time Series Investigation of Delay Time in Interaction between the Regulatory Circuits in the Cardiovascular System of Healthy Humans Using Modeling of Phase Dynamics