@misc{Łuczak_Jadwiga_Problematyka_1967,
 author={Łuczak, Jadwiga and Nowak, Eugeniusz and Wójcik, Zdzisława},
 editor={Polska Akademia Nauk. Komitet Ekologiczny},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1967},
 language={pol},
 abstract={International Symposium on principles and methods of secondary productivity studies of terrestrial ecosystems has been held at Jabłonna near Warsaw (30.VIII-6.IX 1966). Total number of participants amounted to 70 persons from 14 countries. 54 papers were read dealing with productivity studies on vertebrates (22) and invertebrates (28), and four general papers. Read papers will be published in book under title ,,Secondary Productivity of Terrestrial Ecosystems”, Ed. K. Petrusewicz, Warszawa-Kraków 1967.},
 type={Text},
 title={Problematyka Międzynarodowego Sympozjum Produktywności Wtórnej Ekosystemów Lądowych},
 URL={http://rcin.org.pl/Content/127049/PDF/WA058_101420_P3259-13_Eko-Pol-B.pdf},
 volume={13},
 number={2},
 journal={Ekologia Polska. Seria B},
 publisher={Państwowe Wydawnictwo Naukowe},
 keywords={terrestrial ecosystems, secondary productivity, biological productivity, productivity, biological, congresses},
}