APA (7th ed.) Citation

Voorbraak, F. (1991). A preferential model semantics for default logic.

Chicago Style (17th ed.) Citation

Voorbraak, Frans. A Preferential Model Semantics for Default Logic. Utrecht, 1991.

MLA (9th ed.) Citation

Voorbraak, Frans. A Preferential Model Semantics for Default Logic. 1991.

Warning: These citations may not always be 100% accurate.