seeking help with phrase: "zu einer nach Berufsgruppen getrennten Studienarbeit entschlossen"

[edmont]

Greetings. I'm not sure I have correctly translated the red part of the German sentence. Thank you for any assistance.

So kam es offensichtlich bis zum Oktober 1919 nur in Stuttgart zu Zusammenkünften von Technikern, Kaufleuten, Lehrern und Künstlern, die vorläufig zu einer nach Berufsgruppen getrennten Studienarbeit entschlossen.

Attempted translation:
Thus by October 1919 there had apparently only in Stuttgart been gatherings of technicians, merchants, teachers, and artists, who to begin with decided to divide into occupational groupings to do research.

[tiorthan]

It's probably correct although the German sentence is either missing a word or some context to be understood with certainty.

[edmont]

Thank you very much, tiorthan.