00553nam a2200181Ia 4500082002000000100001700020245006600037260002900103300001500132490006200147500000500209690000600214700000500220952010200225964001700327921001000344999001700354  a515.35bP346.IP  aPayne, L. E.  aImproperly posed problems in partial differential equationsb  aPennsylvaniabSIAMc1975  a76p. Bibl.  aRegional conference series in Applied Mathematicsv v. 22  a  a   a  00104070aISIbISId1998-09-25l0o515.35 P346.IPpDP17032r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a14281  c14281d14281