@article{Van Wel2004,
author = {Van Wel, L. and Royakkers, L.},
title= {Ethical issues in web data mining},
year = {2004},
doi = {10.1023/B:ETIN.0000047476.05912.3d},
journal = {Ethics and Information Technology},
volume = {6},
number = {2},
pages = {129--140},
}