Barbara Leporini Maria Claudia Buzzi Marina Buzzi Giulio Mori Automatically Structuring Text for Audio Learning. 73-82 2009 HCI (7) http://dx.doi.org/10.1007/978-3-642-02713-0_8 conf/hci/2009-7 db/conf/hci/hci2009-7.html#LeporiniBBM09