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Rafols, I.; Porter, A.L.; Leydesdorff, L.: Science overlay maps : a new tool for research policy and library management (2010)
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Kay, L.; Newman, N.; Youtie, J.; Porter, A.L.; Rafols, I.: Patent overlay mapping : visualizing technological distance (2014)
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Authors
- Kay, L. 1
- Leydesdorff, L. 1
- Newman, N. 1
- Youtie, J. 1