@article{MABA_1989_3_3-4_a1,
     author = {R. K. Kovacheva},
     title = {On the {Behavior} of {Chebyshev} {Rational} {Approximants} with a {Fixed} {Number} of {Poles}},
     journal = {Mathematica balkanica},
     pages = {244},
     publisher = {mathdoc},
     volume = {3},
     number = {3-4},
     year = {1989},
     url = {http://geodesic.mathdoc.fr/item/MABA_1989_3_3-4_a1/}
}