Complex sentence: In the summer of 2002, negotiations with the German company Heinrich Bauer Verlag from Hamburg were started, which at the end of the year resulted in the publishing of Bravo, teenage biweekly magazine with the highest circulation in Europe.
Split into simpler sentences: In the summer of 2002, negotiations were made with the German company Heinrich Bauer Verlag from Hamburg. This resulted in the publishing of "Bravo", a teenage biweekly magazine with the highest circulation in Europe.