1.
Rational Approximation of Real Functions
by Petrushev, P. P., Popov, Va...
ISBN: 9780521177405
List Price: $75.00
2.
Rational Approximation of Real Functions (Encyclopedia of Mathematics and its Applications)
by Petrushev, P. P., Popov, V. A.
ISBN: 9780521331074
List Price: $110.00