Volkova, N. M. “Autonomous Regulation of Heart Rate in Conditions of Blocking the Beta 1-Adrenergic Receptors in Associative Cortex of Young Rats With Hypoxic Exposure”. Medical and Clinical Chemistry, vol. 17, no. 3, Oct. 2015, doi:10.11603/mcch.2410-681X.2015.v17.i3.5057.