**TOME 41 (89), No. 4, 1998****I. Danciu, G. Micula and A. Revnic :**On the linear stability of the repeated spline-collocation method for Volterra integro-differential equations, p. 237-247**Hanaa Hamad :**On the structure of shock waves in dusty gases, p. 249-256**Cornel Marius Murea :**Domain decomposition method for a flow through two porous media, p. 257-265**Vasile Postolică :**Pareto type efficiency in locally convex spaces through the agency of supernormal cones, p. 267-277**Adrian Revnic :**Note on the absolute stability of the multiderivative spline-collocation methods for ordinary differential equations, p. 279-284**Serge Rukshin :**Some remarks about Hilbert's third problem and equidecomposable convex figures, p. 285-288**Gheorghe Stoica :**Regular delay Langevin equation with degenerate diffusion coefficient, p. 289-294**Marcel-Adrian Şerban :**Iterative methods for some functional-differential equations, p. 295-310**Cristina Şerbănescu :**Stochastic differential equations and unitary processes, p. 311-322**Review by: Grigore Albeanu :**APPROXIMATION THEORY by N. K. Govil, R. N. Mohapatra, Z. Nashed, A. Sharma, J. Szabados, p. 323-327