@article{SM_2010_201_2_a1,
     author = {A. I. Aptekarev and V. G. Lysov},
     title = {Systems of {Markov} functions generated by graphs and the asymptotics of their {Hermite-Pad\'e} approximants},
     journal = {Sbornik. Mathematics},
     pages = {183--234},
     publisher = {mathdoc},
     volume = {201},
     number = {2},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2010_201_2_a1/}
}