@article{GDZPPN002219212, title = {Tchebyshev Systems That Cannot be Transformed Into Markov Systems.}, journal = {Manuscripta mathematica}, volume = {17}, year = {1975}, pages = {67-72}, zbl = {0314.41023}, url = {http://dml.mathdoc.fr/item/GDZPPN002219212} }
Zielke, Roland. Tchebyshev Systems That Cannot be Transformed Into Markov Systems.. Manuscripta mathematica, Tome 17 (1975) pp. 67-72. http://gdmltest.u-ga.fr/item/GDZPPN002219212/