1. Duce, D., Herman, I., Hopgood, B.: Web 2D Graphics File Format. Computer Graphics forum 21(1), 43–64 (2002)
2. Rabaud, V., Belongie, S.: Big Little Icons. In: CVAVI, San Diego, CA (2005)
3. Vantighem, C., Laurent, N., Deckeur, D., Plantinet, V.: Vector eye 1.0.7.6, Copyright SIAME e Celinea (2003),
http://www.siame.com
,
http://www.celinea.com
4. Weber, M.: Autotrace 0.31, GNU General Public License (2002),
http://www.autotrace.sourceforge.net
5. Kuhl, K.: Kvec 2.99, Copyright KK-Software (2003),
http://www.kvec.de