Assessing the influence of prey–predator ratio, prey age structure and packs size on wolf kill rates; Håkan Sand, John A. Vucetich, Barbara Zimmermann, Petter Wabakken, Camilla Wikenros, Hans C. Pedersen, Rolf O. Peterson, Olof Liberg;
Article (PDF Available) in Oikos 2(9) · August 2012