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Pomerantz, J.; Nicholson, S.; Belanger, Y.; Lankes, R.D.: ¬The current state of digital reference : validation of a general digital reference model through a survey of digital reference services (2004)
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Nicholson, S.; Sierra, T.; Eseryel, U.Y.; Park, J.-H.; Barkow, P.; Pozo, E.J.; Ward, J.: How much of it is real? : analysis of paid placement in Web search engine results (2006)
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- Date
- 22. 7.2006 16:32:57
Authors
- Barkow, P. 1
- Belanger, Y. 1
- Eseryel, U.Y. 1
- Lankes, R.D. 1
- Park, J.-H. 1
- Pomerantz, J. 1
- Pozo, E.J. 1
- Sierra, T. 1
- Ward, J. 1
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