A classification theorem for connections. Teleman, Kostake — 2000 Balkan Journal of Geometry and its Applications (BJGA)
On the mathematical work of Gheorge Tzitzeica. Teleman, Kostake — 2005 Balkan Journal of Geometry and its Applications (BJGA)
On the spinorial representations of SO ( 4 , 4 ) . Teleman, Kostake — 2006 Balkan Journal of Geometry and its Applications (BJGA)
Tzitzeica-Bäcklund theorems. Teleman, Kostake; Teleman, Ana-Maria — 2005 Balkan Journal of Geometry and its Applications (BJGA)