Investigation of the coherence of the respiration and the process of parasympathetic control of the heart rate in sleep and awake state

Hramkov A.N , Borovkova E.I. , Karavaev A.S. , Ponomarenko V.I. , Kiselev A.R. , Prokhorov M.D. , Kurbako A.V. , Kulminskiy D.D. , Penzel T.