SpringerLink (Online service), Mitchell, C., & Capitani di Vimercati, S. (2013). Public key infrastructures, services and applications: 9th European Workshop, EuroPKI 2012, Pisa, Italy, September 13-14, 2012, Revised Selected Papers. Springer Berlin Heidelberg.
Chicago-referens (17:e uppl.)SpringerLink (Online service), Chris Mitchell, och Sabrina Capitani di Vimercati. Public Key Infrastructures, Services and Applications: 9th European Workshop, EuroPKI 2012, Pisa, Italy, September 13-14, 2012, Revised Selected Papers. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013.
MLA-referens (8:e uppl.)SpringerLink (Online service), et al. Public Key Infrastructures, Services and Applications: 9th European Workshop, EuroPKI 2012, Pisa, Italy, September 13-14, 2012, Revised Selected Papers. Springer Berlin Heidelberg, 2013.