@article{SM_2013_204_1_a1,
     author = {S. Delvaux and A. L\'opez and G. L\'opez Lagomasino},
     title = {A~family of {Nikishin} systems with periodic recurrence coefficients},
     journal = {Sbornik. Mathematics},
     pages = {43--74},
     publisher = {mathdoc},
     volume = {204},
     number = {1},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2013_204_1_a1/}
}