2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35588For arbitrary high order of the field equation one can always find examples where the de Sitter space-time is an attractor solution in the set of the spatially flat Friedmann-Robertson-Walker models.8 pages, LaTeX under using AMS-Symbols, no figures, e-mail via hjschmi@rz.uni-potsdam.de, to appear in R. Santilli, G. Sardanashvili (Eds.) "New frontiers in gravitation" Hadronic PressGeneral Relativity and Quantum Cosmologytext