HTTP digest authentication in embedded automation systems. - Thomas P. von Hoff; Mario Crevatin (ETFA (1), 2003)

HTTP Digest Authentication - Theory and Practice. - Thomas P. von Hoff; Mario Crevatin (The Industrial Information Technology Handbook, 2005)

Security for Industrial Communication Systems. - Dacfey Dzung; Martin Naedele; Thomas P. von Hoff; Mario Crevatin (Proc. IEEE, 2005)

HTTP Digest Authentication for Embedded Web Servers. - Thomas P. von Hoff; Mario Crevatin (Embedded Systems Handbook, 2005)