@article{10_4064_am33_2_1,
     author = {Arkadiusz Kasprzyk and W/ladys/law Szczotka},
     title = {Covariance structure of wide-sense
 {Markov} processes of order $k\geq 1$},
     journal = {Applicationes Mathematicae},
     pages = {129--143},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {2006},
     doi = {10.4064/am33-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am33-2-1/}
}