@misc{_Bulletin,
 copyright={Uniwersytet Mikołaja Kopernika w Toruniu},
 address={Toruń},
 howpublished={online},
 publisher={Uniwersytet Mikołaja Kopernika},
 language={pol},
 language={eng},
 type={czasopismo},
 title={Bulletin of the Astronomical Observatory in Toruń, nr 9},
 keywords={astronomia},
}