Web Based Electronic Marketplaces: Trading through Collaboration. - Vlad Ingar Wietrzyk; Ingrid Wietrzyk; Bill Grosky (DEXA Workshops, 2005)

Architecting E-Business Infrastructure. - Vlad Ingar Wietrzyk; Robyn Lawson; Ingrid Wietrzyk; Bill Grosky (IMSA, 2005)

E-Business Portals - Architecture and Collaboration. - Vlad Ingar Wietrzyk; Ingrid Wietrzyk; Bill Grosky (IMSA, 2005)