Conference paper (2008) - W. Song (author), K Teunissen (author), X Li (author), X. Li (author), Yn Zhang (author), Xibin Wang (author), X. Wang (author), Xiaochuan Wang (author), X Wang (author), Xintang Wang (author), Ingrid Heynderickx (author), IEJR Heynderickx (author), I.E.J.R. Heynderickx (author)