SANDOZ, Kundl, Austria | 2008 - 2009 |
TESSA, Procter & Gamble, Turkey | 2004 |
Aquachemia Žilina, Slovakia | 2002 |
SC Johnson Polymer, Netherland, USA | 1999 |
Chemie Linz, Austria | 1994 - 1996 |
Chemie Linz, Austria | 1995 |
Biochemie Kundl, Austria | 1995 |
Biochemie Kundl, Austria | 1993 |
Chemie Linz, Austria | 1992 |