Stiefel on Twitter: "Did you know that #psoriasis affects over 125 million people worldwide? 🌍 #BeInformed about how you can stay positive and encourage others who are suffering from the same condition. #
![Sophia Eggert (4) and Jennifer Stiefel (GER) during LEN European Aquatics Waterpolo on January 21, 2020 Sophia Eggert (4) and Jennifer Stiefel (GER) during LEN European Aquatics Waterpolo on January 21, 2020](https://www.imago-images.com/bild/sp/0046217451/w.jpg)
Sophia Eggert (4) and Jennifer Stiefel (GER) during LEN European Aquatics Waterpolo on January 21, 2020
![Gallery of New Design for Eduard-Wallnöfer-Platz Public Square / LAAC Architekten + Stiefel Kramer Architecture - 21 Gallery of New Design for Eduard-Wallnöfer-Platz Public Square / LAAC Architekten + Stiefel Kramer Architecture - 21](https://images.adsttc.com/media/images/5015/1407/28ba/0d02/f000/0074/slideshow/stringio.jpg?1414571979)
Gallery of New Design for Eduard-Wallnöfer-Platz Public Square / LAAC Architekten + Stiefel Kramer Architecture - 21
![Cross‐Sections of Stiefel Manifolds - James - 1958 - Proceedings of the London Mathematical Society - Wiley Online Library Cross‐Sections of Stiefel Manifolds - James - 1958 - Proceedings of the London Mathematical Society - Wiley Online Library](https://londmathsoc.onlinelibrary.wiley.com/cms/asset/0224f8ea-a146-48cc-b7d8-51d211a192a4/plms_s3-8.4.536.fp.png)