Simon Strassl, Autor bei eSquirrel Making textbooks playable Tue, 18 Nov 2025 12:17:44 +0000 en-US hourly 1 https://wordpress.org/?v=6.1.1 https://esquirrel.com/wp-content/uploads/2020/03/cropped-Web-Icon-512x512-1-32x32.png Simon Strassl, Autor bei eSquirrel 32 32