%0 Journal Article %A Mayer, Daniel %A Ryjáček, Zdeněk %T On weak non-linearity of models of physical systems %J Applications of Mathematics %D 1977 %P 301-310 %V 22 %N 4 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1977.103705/ %R 10.21136/AM.1977.103705 %G en %F 10_21136_AM_1977_103705