Peter Hellström, Jesper Nyström, Anders Angerbjörn. 2007. Predation patterns on Norwegian lemmings and grey-sided voles. Abstracts V European Congress of Mammalogy 101.

Jesper Nyström, Johan Ekenstedt, Anders Angerbjörn, Linda Thulin, Peter Hellström, Love Dalén. 2006. Golden Eagles on the Swedish mountain tundra - diet and breeding success in relation to prey fluctuations. Ornis Fennica 83: 145-152.

Jesper Nyström, Love Dalén, Johan Ekenstedt, Helen Angleby, Anders Angerbjörn. 2006. Effect of local prey availability on gyrfalcon diet - DNA analysis on ptarmigan remains at nest sites. Journal of Zoology 269: 57-64.

Jesper Nyström, Johan Ekenstedt, Johan Engström, Anders Angerbjörn. 2005. Gyr falcons, ptarmigan and microtine rodents in Northern Sweden. Ibis 147: 587-597.