TY  - SER
AU  - Shapiro C and Varian H R
TI  - Versioning: The Smart Way to Sell Information
PY  - 0000///0
CY  - HBR
PB  - Nov-Dec 1998
KW  - Versioning, Positioning
UR  - http://192.168.6.13/libsuite/mm_files/Articles/AR1775.pdf
ER  -