000 00311nam a2200121Ia 4500
100 _aHoppe, H Ulrich (ed); Ogata, H (ed) & Soller, A (ed)
020 _a978-0-387-71135-5
942 _cBK
245 _aThe Role of technology in CSCL
260 _aSpringer, New York
_c2007
082 _a371 Hop
300 _ax,194
999 _c47395
_d47395