00339nam a2200121Ia 4500008004100000020001500041082001700056100001800073245003000091260004000121300002800161490002800189260316b        |||||||| |||| 00| 0 eng d  a9810234457  a512bOk41.SM  aOkninski, Jan  aSemigroups of matricesb/  aSingapore:bWorld Scientific,c1998  axiv, 311p. Bibl. Index.  aSeries in Algebrav v.6