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.
8 without a DOI — not checked. A reference
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ROAD PAPER. SOME THEORETICAL ASPECTS OF ROAD TRAFFIC RESEARCH.
The 8 references without a DOI — listed, not checked
no DOI — not checkedR. Abraham and J. Robbin,Transversal mappings and flows (Benjamin, New York, 1967).
no DOI — not checkedM.J. Beckman, C.B. McGuire and C.B. Winston,Studies in the economics of transportation (Yale University Press, New Haven, CT, 1956).
no DOI — not checkedS.C. Dafermos and F.T. Sparrow, “The traffic assignment problem for a general network”,Journal of Research of the NBS 21 (1969) 91–117.
no DOI — not checkedC.B. Garcia and W.I. Zangwill, “Global calculation of catastrophes”, to be published.
no DOI — not checkedO.L. Mangasarian,Nonlinear programming (McGraw-Hill, New York, 1969).
no DOI — not checkedJ. Milnor,Topology from the differentiable viewpoint (University Press of Virginia, Charlottesville, VA, 1965).
no DOI — not checkedJ.M. Ortega and W.C. Rheinboldt,Iterative solutions of nonlinear equations in several variables (Academic Press, New York, 1970).
no DOI — not checkedW.I. Zangwill,Nonlinear programming, A unified approach (Prentice-Hall, Englewood Cliffs, NJ, 1969).
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or importance of the work itself, and nothing about references deposited without a DOI.
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