1. Aldus Corporation, Seattle. Tag Image File Format Specification, Revision 6.0, 1992.
2. CCIR. Encoding Parameters of Digital Television for Studios, Recommendation 601/2, volume XI — Part 1 of Recommendations of the CCIR. CCIR, 1990.
3. CCITT. Standardization of Group 3 Facsimile Apparatus for Document Processing, Recommendation T.4. Red Book. CCITT, 1984.
4. CCITT. Facsimile Coding Schemes and Coding Control Functions for Group 4 Facsimile Apparatus, Recommendation T.6. Blue Book. CCITT, 1988.
5. CCITT. Message Handling Systems and Service Overview, Recommendation X.400. Blue Book. CCITT, 1988.