Hak Lae Kim John G. Breslin Stefan Decker Jaehwa Choi Hong-Gee Kim Personal knowledge management for knowledge workers using social semantic technologies. 28-43 2009 3 IJIIDS 1 http://dx.doi.org/10.1504/IJIIDS.2009.023036 db/journals/ijiids/ijiids3.html#KimBDCK09