Almaguer, C., Thiele, F., Schönberger, C., & Arendt, E. (2015). Ultrastructure Studies of the Lupulin Glands of Different Hop (Humulus lupulus L.) Varieties Observed by Scanning Electron Microscope. BrewingScience, 68(11/12), 153-160. https://brewingscience.de/index.php/brewingscience/article/view/325