Haagh, L. The Developmental Social Contract and Basic Income in Denmark, Social Policy and Society, Cambridge University Press, published online ahead of print 31 August 2018: http://dx.doi.org/10.1017/S1474746418000301, In print: Volume 18, Issue 2, April 2019 , pp. 301-317.
https://www.cambridge.org/core/journals/social-policy-and-society/article/developmental-social-contract-and-basic-income-in-denmark/8AE00CBFBCAB854DEB7084C91FAA8592