Bussi Bär magazine from 1973.
Bussi Bär is a monthly European educational, preschool children's magazine, published by Pabel-Moewig Verlag in ten different languages, originally distributed in German starting in 1966. The characters featured in the comics and illustrated prose were created by iconic cartoonist Rolf Kauka (creator of Fix & Foxi).
The magazine in May of 1973 featured an illustration of Ernie and Bert on the cover, and included Sesamstrasse content inside.