%0 Journal Article %A Roland Zielke %T Tchebyshev Systems That Cannot be Transformed Into Markov Systems. %J Manuscripta mathematica %D 1975 %P 67-72 %V 17 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1975__17_154357/ %F MM2_1975__17_154357