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Winter, F.D. Jr., P. G. Snell and J. Stray-Gundersen. (1989). Effects of 100% oxygen on performance of professional soccer players. The Journal of the American Medical Association, 262 (2), p. 227-29.
Conditioning in Hot Environments
Wisloff, U., J.Helgerud and J. Hoff. (1998) Strength and endurance of elite soccer players. Medicine & Science in Sports & Exercise, 30, p. 462-7.
Conditioning in Hot Environments
Tammann, G.A. "The Hubble Constant: A Discourse." Retrieved November 12, 2003 at http://adsbit.harvard.edu/cgi-bin/nph-article_query?bibcode=1996PASP..108. 1083T&db_key=AST&page_ind=0&plate_select=NO&data_type=GIF&type=SCREEN_GIF.
Astronomical Distance Ladder
1990-1996: Types of armed conflict (SWPA, 1997). Range: 1 (none), 2 (interstate), 3 (regional and/or civil war), 4 (war of independence), 5 (multiple types).
Preparation for Peace
Smith, N.R., and Miner, J.B. "Type of Entrepreneur, Type of Firm, and Managerial Motivation." Strategic Management Journal, 4, 4 (1983), 325-340.
Female Entrepreneurialism in the United Kingdom
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