@article{TRSPY_2012_278_a4,
     author = {V. I. Danchenko and E. N. Kondakova},
     title = {Criterion for the appearance of singular nodes under interpolation by simple partial fractions},
     journal = {Informatics and Automation},
     pages = {49--58},
     publisher = {mathdoc},
     volume = {278},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2012_278_a4/}
}