C. Loebel

Hormonal responses of multiset versus single-set heavy-resistance exercise protocols.

K. Häkkinen, R. Newton, W. Kraemer, 1997, Canadian journal of applied physiology = Revue canadienne de physiologie appliquee.

The effect of heavy resistance exercise on the circadian rhythm of salivary testosterone in men

Noel D. Duncan, N. D. Duncan, K. Häkkinen, 2001, European Journal of Applied Physiology.

The Effects of NCAA Division 1 Intercollegiate Competitive Tennis Match Play on Recovery of Physical Performance in Women

R. Newton, W. Kraemer, S. Mazzetti, 2000 .