00360nam a2200109Ia 4500008004100000082001900041100001900060245008300079260002700162300001900189490004200208250527b        |||||||| |||| 00| 0 eng d  a515.7bG472.CA  aGiles, John R.  aConvex analysis with application in the differentiation of convex functionsb/  aBoston:bPitman,c1982  ax, 278p. Index  aResearch notes in Mathematicsv v. 58