- Broo, B. & Lindberg, P. 1981. Ritsemområdets exploatering: effekter på faunan, främst rovfåglarna [Exploitation of the Ritsem area: effects on fauna, particularly raptors]. Swedish Environmental Protection Agency, Report SNV PM 1435. In Swedish, with English summary.
- Olsson, B.-O. 1980. Projekt Stenfalk: Rapport 1975-1978 [Project Merlin: Report 1975-1978]. Swedish Society for Nature Conservation.
- Hellström, P. 2007. Interactions between rodents and rough-legged buzzards (Buteo lagopus) in northern Sweden. Phil. Lic. Thesis, Dept. of Zoology, Stockholm University.
This study was led by Peter Lindberg & Björn Broo 1966-1978. (Lindberg is also the coordinator of the Swedish peregrine project, participating in EURAPMON). Bengt Olsson coordinated a merlin study in the area 1975-1980. The monitoring study was dormant until 2001 when Peter Hellström re-started the project. Monitoring project is not active as per 2012-2013.