ASTRO S1 - Part 1: Shooting Star, The Lunar Station, The Lunar School Martin Wintersberger, Manuela Wieninger E-Book (epub)

ASTRO S1 - Part 2: Erik Stone, Girl's Birthday, Family Outing Martin Wintersberger, Manuela Wieninger E-Book (epub)

ASTRO S1 - Part 3: Lunar Sneeze, Viktor Romaneschko, The Moon Festival (1) Martin Wintersberger, Manuela Wieninger E-Book (epub)