00290nam a2200109 a 4500008004100000020001500041050001700056100002400073245003200097260004200129350000900171120416s0000    ||||||||||||||||| ||    u  a0521485738  aQA 321.5 Amb  aAmbrosetti, Antonio12aA primer of linear analysis  aCambridgebThe University Pressc1993  a0.00