2021 · Silvia Ivemeyer, Daniela Haager, et al. · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture)
2021 · Solveig March, Jan Brinkmann, et al. · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture)
2019 · Hanna Treu, Jürn Sanders, et al. · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture)
2019 · Solveig March, Daniela Haager, et al. · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture)