@misc{Youssef_Abdallah_A._Mass,
 author={Youssef, Abdallah A. and Gładyszewski, Longin (1935- ). and Głusiec, Leszek.},
 howpublished={online},
 publisher={UMCS},
 language={eng},
 type={artykuł},
 title={Mass spectrometric study of the first ionization potential of guaiazulene},
 keywords={fizyka},
}