Approximation of continuously differentiable functions/
José G. Llavona.
- Amsterdam ; New York: New York: North-Holland, Sole distributors for the U.S.A. and Canada, Elsevier Science, 1986.
- xiv, 241 p. ; 23 cm.
- Notas de matemática ; 112. North-Holland mathematics studies 130. .
- Notas de Matemática (North-Holland), no. 112. .