Robust asymptotic statistics Helmut Rieder. Springer series in statistics. Riede

Subsampling (Springer Series in Statistics) Romano, Joseph P., Michael Wolf and

Franz Gittenberger, Helmut Weiss: Zeeland in Oude Kaarten (1983)

Helmut Debelius : Indian Ocean Reef Guide

Theory of statistical experiments H. Heyer. Springer series in statistic 2498616

Observational Studies (Springer Series in Statistics) Rosenbaum, Paul R.:

'The Essence of Business Statistics' by Joseph G. Nellis (1993, Trade Paperback)

Die Konzentration in der Wirtschaft On Economic Concentration Arndt, Helmut und