LP-1992-01: Valencia, Víctor Sánchez (1992) Lambek Grammar: an Information-based Categorial Grammar. [Report]
LP-1991-08: Valencia, Víctor Sánchez (1991) Categorial Grammar and Natural Reasoning. [Report]
ITLI-1987-05: Valencia, Víctor Sánchez (1987) Traditional Logicians and de Morgan's Example. [Report]