return

ANN I H POINCARE-AN

ARCH RATION MECH AN

ASYMPTOTIC ANAL

B UNIONE MAT ITAL

CALC VAR PARTIAL DIF

COMMUN PART DIFF EQ

COMMUN PUR APPL MATH

INDIANA U MATH J

J DIFFER EQUATIONS

NONLINEAR ANAL-THEOR

P ROY SOC EDINB A

SIAM J MATH ANAL

return