Ruttan, A., & Varga, R. (1989). Real vs Complex Rational Chebyshev Approximation on an Interval. Rocky Mountain Journal of Mathematics. https://oaks.kent.edu/node/1334
Ruttan, Arden, and Richard Varga. 1989. “Real Vs Complex Rational Chebyshev Approximation on an Interval”. Rocky Mountain Journal of Mathematics. https://oaks.kent.edu/node/1334.
Ruttan, A., and R. Varga. Real Vs Complex Rational Chebyshev Approximation on an Interval. Rocky Mountain Journal of Mathematics, 1 Jan. 1989, https://oaks.kent.edu/node/1334.