Ruttan, A., & Varga, R. (1989). A Unified Theory for Real vs Complex Rational Chebyshev Approximation on an Interval. Transactions of the American Mathematical Society. https://oaks.kent.edu/node/1333
Ruttan, Arden, and Richard Varga. 1989. “A Unified Theory for Real Vs Complex Rational Chebyshev Approximation on an Interval”. Transactions of the American Mathematical Society. https://oaks.kent.edu/node/1333.
Ruttan, A., and R. Varga. A Unified Theory for Real Vs Complex Rational Chebyshev Approximation on an Interval. Transactions of the American Mathematical Society, 1 Apr. 1989, https://oaks.kent.edu/node/1333.