00385nam a2200121Ia 4500008004100000082002000041100001600061245005600077250000800133260004000141300002600181500005600207250422b        |||||||| |||| 00| 0 eng d  a515.72bW872.IP  aWong, M. W.  aAn introduction to pseudo-differential operatorsb/  a2nd  aSingapore:bWorld Scientific,c1999  ax, 138p. Index, Bibl.  a"Purchased under NBHM grant for the year 1999-2000"