(2014-09-04) Purhonen, Semi; Rahkonen, Keijo; University of Helsinki. Department of Social Policy - Purhonen, Semi; University of Helsinki. Department of Social Policy - Rahkonen, Keijo

(2015-04-15) Linkala, Minna-Kristiina; University of Helsinki. Department of Social Research - Linkala, Minna-Kristiina

(2005-12-05) Riihelä, Monika; Karlsson, Liisa; National Research and Development Centre for Welfare and Health (STAKES) - Riihelä, Monika; University of Helsinki - Karlsson, Liisa