- Analyse balances and cycle of sulphur in process of magnesite clinker production in specific conditions SMZ, a.s. Jelšava at relation to new emission standards. Institute of geotechnics SAV Kosice - for SMZ, a.s., Jelsava, Kosice april 2003
- Quality and quantity research of deposits and erosional processes in drainage Hornad and Hnilec. Partial administration of UGT SAV Kosice for SVP, s.p., OZ PBH Kosice, february 2003
- Measurement of pollutants and dust deposition in Nizna Slana plant. Institute of geotechnics SAV Kosice - for ZELBA a.s. siderite, s.r.o. (1998-2003)
- Analytical results processing of dust deposition in SMZ a.s.. Jelsava plant. Institute of geotechnics SAV Kosice for SMZ, a.s., Jelsava (1996-2003)
- Analyse of sulphur in dust and clinker from SZM, a.s.. Jelsava from 17.9.2002. Institute of geotechnics SAV Kosice, october 2002
- Administration from measurement of hygienic parameters on place - tunnel Elizabeth for tunnel Visnove, eastern portal Dubna rock, UGT SAV Kosice for Doprastav,a.s., Bratislava, december 2001
- Administration about measurement of asbestos dust near demolition work in EMBRACO area in Spisska Nova Ves. Expertise UGT SAV for fy. Rainbow, s.r.o., Prešov, Kosice 1998
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