https://www.ias.edu/scholars/michal-szachniewicz
Michal Szachniewicz | Scholars | Institute for Advanced Study
https://worldathletics.org/athletes/poland/szymon-szachniewicz-14803885
Szymon SZACHNIEWICZ | Profile | World Athletics
Szymon SZACHNIEWICZ, Poland - 200 Metres Short Track, 60 Metres, 4x100 Metres Relay, 4x200 Metres Relay Short Track