Reference health
The Role of Intellectual Property Rights in Transition Economies: Lessons from Bulgaria
2 of 22 checkable references need attention · checked 2026-08-25
At the dated check, the references listed below either did not resolve in Crossref or DataCite, or carried a retraction notice. Each one is shown with the registry record that put it there.
25 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
References needing attention
does not resolve to a known work10.1080/14649880124222
does not resolve to a known work10.1787/eag-2008-tablea2_5-fr
The 20 checked references that resolve
resolves10.7546/cr-2013-66-2-13101331-4
resolves10.20955/r.72.34-46
The Trade-Related Aspects of Intellectual Property Rights: What Is At Stake?
resolves10.1016/j.respol.2006.04.003
The impact of stronger intellectual property rights on science and technology in developing countries
resolves10.4159/harvard.9780674432833.c5
The use of important inventions as a cause of further inventions
resolves10.1016/s0048-7333(99)00088-8
The U.S. patent system in transition: policy innovation and the innovation process
resolves10.3386/w10271
Does Copyright Piracy Pay? The Effects of U.S. International Copyright Laws on the Market for Books, 1790-1920
resolves10.1016/j.respol.2005.09.002
Socio-political factors and the failure of innovation policy in Croatia as a country in transition
resolves10.1596/1813-9450-2786
The Composition of Foreign Direct Investment and Protection of Intellectual Property Rights: Evidence from Transition Economies
resolves10.1093/iclqaj/12.3.898
The Law of Industrial Property in the Peoples' Democracies and the Soviet Union
The 25 references without a DOI — listed, not checked
no DOI — not checkedref1
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no DOI — not checkedPiracy Study
no DOI — not checkedPiracy, Price Discrimination and Development: The Software Sector in Eastern Europe and Other Emerging Markets
no DOI — not checkedref12
no DOI — not checkedref13
no DOI — not checkedref14
no DOI — not checkedref15
no DOI — not checkedref16
no DOI — not checkedMovement of technology between Britain and Europe in the eighteenth century
no DOI — not checkedProtection of Inventions by Patents
no DOI — not checkedref20
no DOI — not checkedref21
no DOI — not checkedref22
no DOI — not checkedThe Microelectronics Race: The Impact of Government Policy on International Competition (Westview Special Studies in Science
no DOI — not checkedThe Role Of Intellectual Property Rights In Encouraging Foreign Direct Investment And Technology Transfer. Duke Journal of Comparative & International Law 9
no DOI — not checkedref34
no DOI — not checkedref35
no DOI — not checkedref39
no DOI — not checkedref41
no DOI — not checkedref43
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no DOI — not checkedref46
no DOI — not checkedNote that patent applications before 1993 also include applications for inventor's certificates which was the main form of protection of inventions in former communist countries in Eastern Europe. Czechoslovakia split into the Czech Republic and Slovakia in 1993. Thus, the figures for Czechoslovakia after 1993 aggregate figures from the patent offices of Slovakia and the Czech Republic. Similarly, figures for USSR include filings in all former USSR republics after
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