@article{MM3_2017_21_2_a2,
     author = {Ayman Shehata},
     title = {Extended biorthogonal matrix polynomials},
     journal = {Mathematica Moravica},
     pages = {27 - 50},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2017},
     url = {https://geodesic-test.mathdoc.fr/item/MM3_2017_21_2_a2/}
}