Dion Hoe-Lian Goh, Rebecca Pei-Hui Ang. Are pay for performance search engines relevant?. J. Information Science, 28(5):349-355, 2002. [doi]
@article{GohA02,
title = {Are pay for performance search engines relevant?},
author = {Dion Hoe-Lian Goh and Rebecca Pei-Hui Ang},
year = {2002},
doi = {10.1177/016555150202800501},
url = {http://dx.doi.org/10.1177/016555150202800501},
researchr = {https://researchr.org/publication/GohA02},
cites = {0},
citedby = {0},
journal = {J. Information Science},
volume = {28},
number = {5},
pages = {349-355},
}