Oliveira, B., Wang, M., Gibbons, J., & ACM. (2008). The VISITOR Pattern as a Reusable, Generic, Type-Safe Component.
Lua i Stíl Chicago (17ú heag.)Oliveira, B., M. Wang, J. Gibbons, agus ACM. The VISITOR Pattern as a Reusable, Generic, Type-Safe Component. 2008.
Lua MLA (9ú heag.)Oliveira, B., et al. The VISITOR Pattern as a Reusable, Generic, Type-Safe Component. 2008.
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