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“The Reliability and Validity in Comparative Studies of Software Cost Estimation Models”, with Erik Stensrud, and Martin Shepperd,. IEEE Transactions on Software Engineering, vol. 31, No. 5, (2005) pp. 380-391.
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“A Simulation Study of the Model Evaluation Criterion MMRE”, with Erik Stensrud, Tron Foss, and Barbara Kitchenham, IEEE Transactions on Software Engineering, vol. 29, no. 11,pp. 985-995, 2003.
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“Identifying High Performance ERP projects”, with Erik Stensrud, IEEE Transactions on Software Engineering, vol. 29, no. 5, pp. 398-416, 2003.
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“Analysing Data Sets with Missing Data: An Empirical Evaluation of Imputation Methods and Likelihood-Based Methods”, with Erik Stensrud and Ulf Olsson, IEEE Trans. on Software Engineering, 27, 11, pp.999-1013, 2001.
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“Moral Hazard, Competition and Contract Design: Empirical Evidence from Managerial, Franchised and Entrepreneurial Businesses in Norway”, with Arne Nygaard, Applied Economics, 32, 3, pp.349-356, 2000.
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