Volkova, N. M. “The Role of M1-Cholinergic Receptors in Associative Cortex of Young Rats in the Performing Autonomous Regulation of Heart Rate During Hypoxic Exposure”. Medical and Clinical Chemistry, vol. 17, no. 4, Dec. 2015, doi:10.11603/mcch.2410-681X.2015.v17.i4.5675.