Loet Leydesdorff, Evgeniy Perevodchikov and Alexander Uvarov, Measuring Triple-Helix Synergy in the Russian Innovation Systems at Regional, Provincial and National Levels, Journal of the Association of Information Science and Technology 66(6) (2015) 1229-1238; doi: 10.1002/asi.23258
Alexander M Petersen, Daniele Rotolo and Loet Leydesdorff, The Interaction of ‘Supply’, ‘Demand’, and ‘Technology’ in Terms of Medical Subject Headings: A Triple Helix Model of Medical Innova- tions; preprint at http://papers.ssrn.com/sol3/papers.cfm? abstract_id=2604702