Profesional experiences: 1981 – 1987, Military corps 5251, Liptovský Mikuláš, ČSFSR, Head of construction unit at the construction of the area of the Military Academy and Research Institute in Liptovskom Mikuláši; 1985 – 1988, Military topographical institute, Dobruška, ČSFSR, topographer – specialist; 1989 – 1991, Military Cartographic…