@article{cohen2006european,
title={European public acceptance of euthanasia: socio-demographic and cultural factors associated with the acceptance of euthanasia in 33 European countries},
author={Cohen, Joachim and Marcoux, Isabelle and Bilsen, Johan and Deboosere, Patrick and Van der Wal, Gerrit and Deliens, Luc},
journal={Social science \& medicine},
volume={63},
number={3},
pages={743--756},
year={2006},
publisher={Elsevier}
}
See the full reference list in the paper.