@article{SM_2018_209_7_a4,
     author = {G. L\'opez Lagomasino and W. Van Assche},
     title = {Riemann-Hilbert analysis for {a~Nikishin} system},
     journal = {Sbornik. Mathematics},
     pages = {1019--1050},
     year = {2018},
     volume = {209},
     number = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2018_209_7_a4/}
}