@misc{Anasiewicz_Anna_The_1975,
 author={Anasiewicz, Anna},
 editor={Polska Akademia Nauk. Instytut Ekologii},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 howpublished={online},
 year={1975},
 language={eng},
 abstract={The alfalfa plantations under observation were visited by honey bees, 104 wild bee species and 17 bumble-bee species. The length of a working day and the daily variations in the flights of individual species of the bees under study appeared to depend to a large extent on the body size of the individuals.},
 type={Text},
 title={The bees (Apoidea, Hymenoptera) on alfalfa (Medicago media Pers.) plantations. 1, The species composition and variation of flights},
 URL={http://rcin.org.pl/Content/73800/PDF/WA058_86683_P2840-T23_Eko-Pol-A-Nr-1.pdf},
 volume={23},
 number={1},
 journal={Ekologia Polska},
 publisher={Polish Scientific Publishers},
 keywords={bees, pollination, alfalfa, Apoidea, Medicago sativa},
}