1. C.J. Kim, H.H.C.M. Christiaans, & J.C. Diehl. 2006. Exploring the influence of culture in consumer electronic products. In RN Pikaar, EAP Koningsveld & PJM Settels (Eds.), Proceedings IEA2006 Congres - Meeting diversyity in ergonomics (pp. 1-6). Amsterdam: Elsevier.

2. C.J. Kim, H.H.C.M. Christiaans, & J.C. Diehl. 2006. Exploring interaction between artefacts and culture for future product design. In S.n. (Ed.), Proceedings of International Future Design Conference on Changing Places of Digi-Log Future (pp. 466-480).

3. C.J. Kim, H.H.C.M. Christiaans, & J.C. Diehl. 2007. The role of culture in product design. International Conference of Intercultural Relation, Groningen, the Netherlands.

4. C.J. Kim, H.H.C.M. Christiaans, & D. van Eijk. 2007. Soft problems in using consumer electronic. In S Poggenpohl (Ed.), IASDR07 Proceedings: Emerging trends in design research (pp. 1-18). Hong Kong: The Hong Kong Polytechnic University.

5. C.J. Kim & H.H.C.M. Christiaans. 2008. The correlation between soft problems and users. In S.n. (Ed.), Proceedings of the 9th Southeast Asian Ergonomics Society Conference (pp. 1-11). Bangkok: Thammasat University.

6. C.J. Kim & H.H.C.M. Christiaans. 2009. Usability and 'soft problems': a conceptual framework tested in practice. In S Wang (Ed.). Proceedings of the 17th world congress on ergonomics IEA 2009 (pp. 1-9). Beijing: Chinese Ergonomics Society.

7. C.J. Kim & H.H.C.M. Christiaans. 2009. "Soft" problems with consumer electronics and the influence of user characteristics. In S.n. (Ed.), Proceedings of the 17th International conference on engineering design, ICED'09 (pp. 241-251). S.l.: The Design Society.

8. C.J. Kim & H.H.C.M. Christiaans. 2009. User profiles based on soft usability problems in consumer electronic products. In K Lee, J Kim & LL Chen (Eds.), Proceedings of the IASDR2009 "Design Rigor & Relevance" (pp. 1-11). Seoul: Korean Society of Design Science.