000 00318nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
082 _a001.64 YOF
100 _aYoffie, David B
245 0 _aCompeting in the age of digital-convergence
260 _bHarvard Business School
_aUSA
_c1997
300 _a464p p.
942 _cBK
999 _c918
_d918