Passage: He supported his education by teaching drawing at a commercial art school and providing illustrations to the magazines Ulk (Joke, or Spoof) and Lustige Blätter (The Funny Papers). Among his teachers at the Academy were Albert Wolff and Fritz Schaper. Under the aegis of a sculptor's association called "Am Wege" (On the Way), he had his first successes and obtained a one-year scholarship to Paris, where he actually remained for three years, working in a major art studio.

Question: Which magazine did he contribute art to?
Ulk (Joke, or Spoof) and Lustige Blätter