Calibration of estimator-weights via semismooth Newton method. - Ralf T. Münnich; Ekkehard W. Sachs; Matthias Wagner 002 (J. Glob. Optim., 2012)

Fast integer-valued algorithms for optimal allocations under constraints in stratified sampling. - Ulf Friedrich; Ralf T. Münnich; Sven de Vries; Matthias Wagner 002 (Comput. Stat. Data Anal., 2015)