
References
^ Michael YessisSecrets of Russian Sports Fitness and Training by Michael Yessis (2008, Paperback) EBayProduct. ISBN 9780981718026 (revised Nov 2013)^ Dr. Michael Yessis (2012). Secrets of Russian Sports Fitness & Training ISBN 9780981718026 (revised Apr 2012)^ Dr. Michael Yessis (2012). Secrets of Russian Sports Fitness & Training ISBN 9780981718026 (revised Apr 2012)^ Michael YessisSecrets of Russian Sports Fitness and Training, Ultimate Athlete Concepts. Amazon. ISBN 9780981718026 (revised Feb 2015)
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