1056/NEJMoa1415627. Further cases of Variegated Squirrel 1 Bornavirus. Friedrich-Loeffler-Institut. 1 March 2016 [2016-07-13]. (原始内容存档于2016-08-28). 维基共享资源中相关的多媒体资源:雜色松鼠
Koch-Institut. Robert Koch Institut. [16 April 2016]. (原始内容存档于19 May 2016). FriedrichLoeffler Institute, Germany. Caverion. [16 April 2016]. (原始内容存档于22 April 2016)