%0 Book Section %A Fornasini, E. %T Research topics in linear systems on partially ordered time sets %B Analyse des systèmes %A Collectif %S Astérisque %D 1980 %P 105-114 %N 75-76 %I Société mathématique de France %U http://archive.numdam.org/item/AST_1980__75-76__105_0/ %G en %F AST_1980__75-76__105_0