00321nam a2200121Ia 4500008004100000082003600041100001800077245003900095250001200134260003300146300001000179650001000189060110s9999    xx            000 0 und d  a512.5bHEL/L            aHELSON, Henry  aLinear algebrabGiftcHenry Helson  a2nd ed.  bHindusthan Book Agencyc1994  a173p.  a512.5