Credits and Acknowlegedments
This product was developed inside Tecgraf Computer Graphics Laboratory by:
 | Camilo of the Fonseca Freire |
| Jaudênia Cavalcante |
XY was implemented together with:
| Carlos Henrique Levy (K2 Sistemas) |
| Paulo Mattos (K2 Sistemas) |
| Marcelo Jaccoud Amaral (CENPES) |
