@article{SchĂźler2017, author = "Svenja SchĂźler and Meinhard Kieser and Geraldine Rauch", title = "{Additional file 2 of Choice of futility boundaries for group sequential designs with two endpoints}", year = "2017", month = "8", url = "https://springernature.figshare.com/articles/journal_contribution/Additional_file_2_of_Choice_of_futility_boundaries_for_group_sequential_designs_with_two_endpoints/5287780", doi = "10.6084/m9.figshare.c.3846742_D2.v1" }