per IPI World Congress and General Assembly Boston 2000 49ena.
per IPI World Congress and General Assembly Edingburgh 2006 55ena.
per IPI World Congress and General Assembly Moscou 1998 47ena.
per IPI World Congress and General Assembly Nova Delhi 2001 50ena.
per IPI World Congress and General Assembly Salzburg 2003 52ena.
per IPI World Congress and General Assembly Taipei 1999 48ena.
per IPI World Congress and General Assembly Warsaw 2004 53ena.
per Goff, Peter [ed.] | Trionfi, Barbara [ed.].
Implantat amb Koha