@ARTICLE{
author={Vince Istvan I,Vince Oliver I,Ludmany A,Andriyenko O},
year={2005},
title={The MnI 539.47 nm line variation in solar active regions},
journal={SOLAR PHYSICS},
volume={229},
number={2},
pages={273-285},
document_type={Article},
} 

@ARTICLE{
author={Vince Istvan I,Ludmany A,Vince Oliver I},
year={2003},
title={The observed MnI 539.47 nm line profiles in the preceding sunspot of the NOAA 9563 active region},
journal={PROCEEDINGS OF THE XIII NATIONAL CONFERENCE OF YUGOSLAV ASTRONOMERS},
volume={},
number={75},
pages={63-66},
document_type={Proceedings Paper},
}