TY - JOUR T1 - Non-invasive genetic approaches for estimation of ungulate population size: a study on roe deer (Capreolus capreolus) based on faeces AU - Ebert, C. AU - Sandrini, J. AU - Spielberger, B. AU - Hohmann, U. AU - Thiele, B. PY - 2012 VL - 35 IS - 2 JF - Animal Biodiversity and Conservation