Fuzzy Time Expressions in Natural Language Queries. - Nancy Van Gyseghem; R. Vandenberghe; Filip Devos; Rita M. M. De Caluwe (FQAS, 1994)

Modelling Vague Lexical Time Expressions by Means of Fuzzy Set Theory. - Filip Devos; Nancy Van Gyseghem; R. Vandenberghe; Rita M. M. De Caluwe (J. Quant. Linguistics, 1994)

Granularity in the Interpretation of Around in Approximative Lexical Time Indications. - Filip Devos; Patricia Maesfranckx; Guy De Tré (J. Quant. Linguistics, 1998)