@misc{,
 volume={Year 1919/1920},
 copyright={Public Domain},
 howpublished={online},
 language={pol},
 type={Text},
 URL={http://rcin.org.pl/Content/14900/PDF/WA488_5864_P1765_R1919-1920-RPAU.pdf},
 keywords={Polish Academy of Arts and Sciences - history, Polish scientific periodicals - 20 c.},
}