1. Fischler SI. Ice hockey: history, rules, equipment, players, & facts. Available at: https://www.britannica.com/sports/ice-hockey. Accessed 8 September 2022.
2. Hockey 101: rules of the game. Available at: https://www.sportsnet.ca/hockey/hockey-101-rules-of-the-game/. Accessed 8 September 2022.
3. Rule 624 | Icing the puck. Available from: https://www.usahockeyrulebook.com/page/show/1084675-rule-624-icing-the-puck. Accessed 8 September 2022.
4. Eliminating fighting and head hits from hockey: opportunities and barriers;Smith;Curr Sports Med Rep,2019
5. Membership statistics. Available from: https://www.usahockey.com/membershipstats. Accessed 8 September 2022.