Reference health
The concept of entropy in scientometrics and innovation research
1/1 checkable references clean · checked 2026-08-03
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
14 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.
The 1 checked reference that resolves
The 14 references without a DOI — listed, not checked
no DOI — not checkedR.P. Feynman, R.B. Leighton, M. Sands,The Feynman Lectures on Physics, Reading, Mass., Addison-Wesley, 1971.
no DOI — not checkedC.E. Shannon, W. Weaver,The Mathematical Theory of Communication, Urbana, University of Illinois Press, 1949.
no DOI — not checkedF. Kodama, Dynamics of National R & D Program, Research on Socio-Economic Aspects of Energy Systems, Tokyo, Ministry of Education, Science and Culture, 1987.
no DOI — not checkedH.P.F. Peters, D. Hartmann, A.F.J. Van Raan, Monitoring advances in chemical engineering,Informetrics,L. Egghe,R. Rousseau (Eds), Amsterdam, Elsevier, 1988, pp. 175–195.
no DOI — not checkedH. Grupp, U. Schmoch, Technologieindikatoren: Aussagekraft, Ver-wendungsmöglichkeiten, Erhebungsverfahren,Handbuch — Organisation und Technik der Kommunikation,H.J. Bullinger (Ed.), München, Beck, 1989.
no DOI — not checkedU. Schmoch, H. Grupp, Patents between Corporate Strategy and Technology Output: An Approach to the Synoptic Evaluation of US, European, and West German Patent Data, Proceedings of the workshop on “Science Indicators: Their Use in Science Policy and their Role in Sciences”, Leiden, D.S.W.O. Press, 1989.
no DOI — not checkedU. Schmoch, H. Grupp, W. Mannsbart, B. Schwitalla,Technik-prognosen mit Patentindikatoren, Köln, Verlag TÜV Rheinland, 1988.
no DOI — not checkedS. Hauser,Statistische Verfahren zur Datenbeschaffung und Datenanalyse, Freiburg, Verlag Rombach, 1981.
no DOI — not checkedH. Legher, West German competitiveness of technology-intensive products,Problems of Measuring Technological Change,H. Grupp (Ed.), Köln, Verlag TÜV Rheinland, 1987, pp. 171–190.
no DOI — not checkedH. Grupp, H. Legler,Strukturelle und technologische Position der Bundes-republik Deutschland im internationalen Wettbewerb, Final Report, Karlsruhe & Hannover, 1989.
no DOI — not checkedR. Johnston, J. Hartley, Formulation and Development of High Technology Indicators, Final Report, Centre for Technology and Social Change, University of Wollongong/Australia, 1986.
no DOI — not checkedTelecom R & D: From Chips to Satellites,The Oriental Economist, 8 (1985) 35.
no DOI — not checkedH. Grupp (Ed.),Problems of Measuring Technological Change, Köln, Verlag TÜV Rheinland, 1987.
no DOI — not checkedH. Grupp, O. Hohmeyer, R. Kollert, H. Legler,Technometrie — Die Bemessung des technisch-wirtschaftlichen Leistungsstands, Köln, Verlag TÜV Rheinland, 1987.
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-08-03 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
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