%0 Journal Article %T Pollen host selection by predominantly alpine bee species of the genera Andrena, Panurginus, Dufourea, Megachile, Hoplitis and Osmia (Hymenoptera, Apoidea) %J - %D 2018 %R https://doi.org/10.3897/alpento.2.29250 %U https://alpineentomology.pensoft.net/article/29250/