London 2012 Paralympics: Swimming guide
S7 (classification) - Wikipedia
S8 (classification) - Wikipedia
Swimming at the Rio 2016 Paralympics: All you need to know - BBC Sport
Women's 50m Freestyle S7 Final | Dublin 2018
ParalympicsGB | Para swimming
Paralympics 2012: I feared the games might be over-hyped and politically correct. How wrong I was. Now I feel humbled and awe-struck | Daily Mail Online
Susie Rodgers wins S7 50m Butterfly gold at Rio 2016 Paralympic Games
Impact of the 2018 World Para Swimming classification revision on the race results in international Paralympic swimming events | German Journal of Exercise and Sport Research
Paralympics 2021 swimming classifications explained
Men's 100m Backstroke S7 Final | London 2019
Swimming - Amplitude
Paralympics cheating: Fake, exaggerated disabilities causing epidemic - Sports Illustrated
S7 Swimming explained - a paralympic class at the Paris 2024 games
Paralympics swimming categories: S9, S13, S14 and more | The Independent
2023 Para Worlds Day 2: USA's Morgan Stickney Smashes World Record In Women's S7 400 FR
S7 (classification) - Wikipedia
Paralympic Swimming Classifications Explained
Swimming Classification Rules and Regulations
Para-swimming classification - Wikipedia
Impact of the 2018 World Para Swimming classification revision on the race results in international Paralympic swimming events | German Journal of Exercise and Sport Research
S7 (classification) - Wikipedia
Fastest swim 50 m butterfly - S7 (male) | Guinness World Records
 "Tokyo Paralympics 2020: Indian swimmers Suyash, Mukundan fail to qualify for S7 50m butterfly final – Firstpost")