APA

Marcus U., Vogel U., Schubert A., Claus H., Baetzing-Feigenbaum J., Hellenbrand W. & Wichmann O. (20131023). A cluster of invasive meningococcal disease in young men who have sex with men in Berlin, October 2012 to May 2013. : Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin.

Chicago

Marcus U, Vogel U, Schubert A, Claus H, Baetzing-Feigenbaum J, Hellenbrand W and Wichmann O. 20131023. A cluster of invasive meningococcal disease in young men who have sex with men in Berlin, October 2012 to May 2013. : Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin.

Harvard

Marcus U., Vogel U., Schubert A., Claus H., Baetzing-Feigenbaum J., Hellenbrand W. and Wichmann O. (20131023). A cluster of invasive meningococcal disease in young men who have sex with men in Berlin, October 2012 to May 2013. : Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin.

MLA

Marcus U, Vogel U, Schubert A, Claus H, Baetzing-Feigenbaum J, Hellenbrand W and Wichmann O. A cluster of invasive meningococcal disease in young men who have sex with men in Berlin, October 2012 to May 2013. : Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin. 20131023.