@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/