Perception and motivation influence social networks.
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References
Dodds, P. S., Muhamad, R. & Watts, D. J. An experimental study of search in global social networks. Science, 301, 827 - 829, (2003).
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Ball, P. More than six degrees separate us. Nature (2003). https://doi.org/10.1038/news030804-10
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DOI: https://doi.org/10.1038/news030804-10