TY - BOOK AU - Shapiro,Harold S. TI - Smoothing and approximation of functions AV - QA1QA221 .M92 no. 55 U1 - 517 PY - 1967///?] CY - Madras PB - Institute of Mathematical Sciences KW - Approximation theory KW - Functions N1 - "References": l. 109 ER -