TY  - RPRT
TI  - Estimation in flexible two stage designs.
AU  - Werner Brannath
AU  - Franz König
AU  - Peter Bauer
PY  - 2006
DO  - 10.1002/sim.2258
UR  - https://pubmed.ncbi.nlm.nih.gov/16220489/
ID  - 16220489
ER  -