Vissing, Marie S., et al. “Non-Stop Autumn Migrations of Light-Bellied Brent Geese Branta Bernicla Hrota Tracked by Satellite Telemetry – Racing for the First Zostera Bite?”. Wildfowl, Nov. 2020, pp. 76-93, https://tidsskrift.dk/Wildfowl/article/view/154573.