@misc{Hazelhoff_Engel_Hendrik_(1900–1945)_Ventilation_1954,
 author={Hazelhoff, Engel Hendrik (1900–1945)},
 copyright={Public Domain},
 address={Haag},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1954},
 publisher={Uitgeverij Dr W. Junk},
 language={eng},
 title={Ventilation in a bee-hive during summer},
 type={Text},
 URL={http://rcin.org.pl/Content/127269/PDF/WA488_159922_19746_s2489.pdf},
 keywords={Insects - bees - ventilation of hives in summer by fanning - social regulation of breathing},
}