Marsh, H. W. (1994). The importance of being important: Theoretical models of relations between specific and global components of physical self-concept. Journal of sport and exercise psychology, 16(3), S. 306-325. doi:10.1123/jsep.16.3.306

Marsh, Herbert W. "The Importance of Being Important: Theoretical Models of Relations between Specific and Global Components of Physical Self-concept." Journal of Sport and Exercise Psychology 16, no. 3 (1994): S. 306-325.

Marsh, Herbert W. "The Importance of Being Important: Theoretical Models of Relations between Specific and Global Components of Physical Self-concept." Journal of Sport and Exercise Psychology 16.3 (1994): S. 306-325.