Another article describes a study entitled Return of the European Bison (Bison bonasus) to the Czech Republic published by the Czech Landscape in collaboration with scientists from the Biology Centre and the Institute of Vertebrate Biology, both of the ASCR and the University of South Bohemia. Research in the Czech Republic identified areas suitable for their return to the wild, mainly former military areas; surface areas of which range between 219-372 km2. In 2012, European bison was returned to the wild at Ralsko nature reserve, a former military training ground in Central Bohemia. and Miloslav jirků [et al.].