Barnett, Vic; Hilditch, S (1993). "The Effect of an Artificial Pitch Surface on Home Team Performance in Football (Soccer)". Journal of the Royal Statistical Society. Series A (Statistics in Society). 156 (1): 39–50. doi:10.2307/2982859. JSTOR2982859.
Barnett, Vic; Hilditch, S (1993). "The Effect of an Artificial Pitch Surface on Home Team Performance in Football (Soccer)". Journal of the Royal Statistical Society. Series A (Statistics in Society). 156 (1): 47. doi:10.2307/2982859. JSTOR2982859.
Ryder, Alan (January 2004). "Shot quality"(PDF). p. 2. Retrieved 4 January 2018.
Ryder, Alan (January 2004). "Shot quality"(PDF). p. 15. Retrieved 5 January 2018.
jstor.org
Barnett, Vic; Hilditch, S (1993). "The Effect of an Artificial Pitch Surface on Home Team Performance in Football (Soccer)". Journal of the Royal Statistical Society. Series A (Statistics in Society). 156 (1): 39–50. doi:10.2307/2982859. JSTOR2982859.
Barnett, Vic; Hilditch, S (1993). "The Effect of an Artificial Pitch Surface on Home Team Performance in Football (Soccer)". Journal of the Royal Statistical Society. Series A (Statistics in Society). 156 (1): 47. doi:10.2307/2982859. JSTOR2982859.