«Heart rate and metabolic response to competitive squash in veteran players: identification of risk factors for sudden cardiac death», European Heart Journal, Volume 10, Number 11, Pp. 1029—1035, abstractАрхивная копия от 20 декабря 2008 на Wayback Machine
«Heart rate and metabolic response to competitive squash in veteran players: identification of risk factors for sudden cardiac death», European Heart Journal, Volume 10, Number 11, Pp. 1029—1035, abstractАрхивная копия от 20 декабря 2008 на Wayback Machine