Filtering Software Specifications Written in Natural Language. - Núria Castell; Àngels Hernández (EPIA, 1995)

The Software Requirement Modelling in SAREL. - Núria Castell; Àngels Hernández (REFSQ, 1998)

Knowledge Management in the Sarel System. - Núria Castell; Àngels Hernández (DEXA Workshop, 2000)