In 1805 Jabbo Oltmanns came to Berlin .
In 1805 Jabbo Oltmanns assisted Bode with his astronomical observations and his work on the Jahrbuch , in which also the first of his own articles appeared .
In 1805 Jabbo Oltmanns came to Berlin and assisted Bode with his astronomical observations and his work on the Jahrbuch , in which also the first of his own articles appeared .