A Principle of Uncertainty for Information Seeking. Kuhlthau, C. C. Journal of Documentation, 49(4):339–355, April, 1993.
A Principle of Uncertainty for Information Seeking [link]Paper  doi  bibtex   
@article{kuhlthau_principle_1993,
	title = {A {Principle} of {Uncertainty} for {Information} {Seeking}},
	volume = {49},
	issn = {0022-0418},
	url = {http://www.emeraldinsight.com/doi/abs/10.1108/eb026918},
	doi = {10/fdsgv4},
	number = {4},
	urldate = {2017-10-09},
	journal = {Journal of Documentation},
	author = {Kuhlthau, Carol C.},
	month = apr,
	year = {1993},
	pages = {339--355},
}

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