At Kazan University , Lobachevsky was influenced by professor Johann Christian Martin Bartels -LRB- 1769 1833 -RRB- , a former teacher and friend of German mathematician Carl Friedrich Gauss .
At Kazan University , Lobachevsky was influenced by professor Johann Christian Martin Bartels -LRB- 1769 1833 -RRB- . Bartels was a former teacher and friend of German mathematician Carl Friedrich Gauss .
At Kazan University , Lobachevsky was influenced by professor Johann Christian Martin Bartels -LRB- 1769 1833 -RRB- . Bartels was a former teacher and friend of German mathematician Carl Friedrich Gauss .
Schreiben Sie eine einfachere Version des Satzes: At Kazan University , Lobachevsky was influenced by professor Johann Christian Martin Bartels -LRB- 1769 1833 -RRB- , a former teacher and friend of German mathematician Carl Friedrich Gauss . Ausgabe: