@article{2006:andersen:10_jahre_f,
title = {10 Jahre freie Kassenwahl},
year = {2006},
note = {},
journal = {Gesundheits- und Sozialpolitik (G&S)},
pages = {19--28},
author = {Andersen, Hanfried H. and Grabka, Markus M.},
volume = {60},
number = {7-8}
}