Regulating SPAM : Directive 2002/58 and beyond / Lodewijk F. Asscher; Judith van Erve
Anti-spam measures : analysis and design / Guido Schryen
Spam e Mail-Bomb : subsídios para uma perspectiva criminal / F. Bruto da Costa, R. Bravo; pref. Paulo Tomás Neves; trad. Maria Fátima Pais
Provider security measures [documento electrónico] : survey and anti-spam measures of electronic communication service providers: deliverable 2.1.6 of ENISA's work programme 2007 / Pascal Manzano and Christian Rossow