Dankmar Böhning Wilfried Seidel Marco Alfò Bernard Garel Valentin Patilea Günther Walther 5205-5210 2007 51 Computational Statistics & Data Analysis 11 http://dx.doi.org/10.1016/j.csda.2006.10.025 db/journals/csda/csda51.html#BohningSAGPW07