2005

Steiner, Winfried J. and Belitz, Christiane and Lang, Stefan (2005): Semiparametric Stepwise Regression to Estimate Sales Promotion Effects. Collaborative Research Center 386, Discussion Paper 438

2002

Lang, Stefan and Adebayo, Samson B. and Fahrmeir, Ludwig and Steiner, Winfried J. (2002): Bayesian Geoadditive Seemingly Unrelated Regression. Collaborative Research Center 386, Discussion Paper 300