Reference
Ronnie Walcher (2021): Effects of management cessation on bumblebees (Hymenoptera, Bombus sp.), hoverflies (Diptera, Syrphidae), heteropteran bugs (Hemiptera, Heteroptera), grasshoppers (Orthoptera, Caelifera/ Ensifera), plants, soil characteristics and humans in Austrian and Swiss mountain grassland ecosystems. - Dissertation for the attainment of the doctoral degree at the University of Natural Resources and Life Sciences, Vienna – Monografien Entomologie Hymenoptera – 0210: 1 - 126.