Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Statistische Afdeling

Theil, H. (1950). A rank-invariant method of linear and polynomial regression analysis, 3; confidence regions for the parameters of polynomial regression equations. In Stichting Mathematisch Centrum. Statistische Afdeling (SP 5a/50/R). Stichting Mathematisch Centrum.