Stability of Ritz Procedure for Nonlinear Two-Point Boundary Value Problem. Alexandru I. Schiop Numerische Mathematik
A remark on non-linear integral equations of the Hammerstein type Schiop, Alexandru I. — 1974 Portugaliae mathematica
On the stability of the Ritz procedure for nonlinear two-point boundary value problems Schiop, Alexandru I. — 1979 Portugaliae mathematica