The Cat_ToBI labelling sistem is explained in the webpage Cat_ToBI training materials.

The basic references about Cat_ToBI are:

• Prieto, Pilar, Lourdes Aguilar, Ignasi Mascaró, Francesc Torres-Tamarit, Maria del Mar Vanrell (2009). L'etiquetatge prosòdic Cat_ToBI. Estudios de Fonética Experimental XVIII, 287-309. [fulltext, sound files]
• Prieto, Prieto (in press). The Intonational Phonology of Catalan. Dins: Sun-Ah Jun (ed.) Prosodic Typology 2. Oxford: Oxford University Press, 43-80. [fulltext]
• Escudero, David, Lourdes Aguilar, Maria del Mar Vanrell, Pilar Prieto (2012). Analysis of inter-transcriber consistency in the Cat_ToBI prosodic labelling system, Speech Communication 54(4), 566-582. [fulltext]