Ruuska, P. S., Hautala, A. J., Kiviniemi, A. M., Mäkikallio, T. H., & Tulppo, M. P. (2012). Self-Rated Mental Stress and Exercise Training Response in Healthy Subjects. Frontiers Research Foundation.

Ruuska, Piritta S., Arto J. Hautala, Antti M. Kiviniemi, Timo. H. Mäkikallio, ja Mikko P. Tulppo. Self-Rated Mental Stress and Exercise Training Response in Healthy Subjects. Frontiers Research Foundation, 2012.

Ruuska, Piritta S., et al. Self-Rated Mental Stress and Exercise Training Response in Healthy Subjects. Frontiers Research Foundation, 2012.