@article{journal, author = {Franke, U. and Goll, B. and Hohmann, U. and Heurich, M.}, title = {Aerial ungulate surveys with a combination of infrared and high–resolution natural colour images}, year = {2012}, volume = {35.2}, pages = {285--293}, journal = {Animal Biodiversity and Conservation}, keywords = {Aerial survey, Infrared camera, Microlight aircraft, Ungulates, Wildlife monitoring} }