na INLIS000000000000491 20260226085019 0010-0317000489 260226 0 An introduction to variational inequalities and their applications / David Kinderlehrer Kinderlehrer, David Academic Press, 1980 xiv, 313 hlm. ; 23 cm 512.97 Kin i 512.97 persamaan (aljabar) 330691112