U. Häkkinen

Determinants of cost efficiency of Finnish hospitals: A comparison of DEA and SFA

M. Linna, U. Häkkinen, M. Linna, 1999 .

Finland. Teoksessa: OECD. The reform of health care systems. A review of seventeen OECD Countries.

U. Häkkinen, I. Vohlonen, U. Häkkinen, 1994 .