Hinze, R., Jeuring, J., & Löh, A. (2006). Typed Contracts for Functional Programming. Springer Berlin / Heidelberg.
Lua i Stíl Chicago (17ú heag.)Hinze, R., J. Jeuring, agus A. Löh. Typed Contracts for Functional Programming. Springer Berlin / Heidelberg, 2006.
Lua MLA (9ú heag.)Hinze, R., et al. Typed Contracts for Functional Programming. Springer Berlin / Heidelberg, 2006.
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