%0 Journal Article %A Alain Dervieux %T To be structured, or unstructured, fifty years of slings and arrows %J Comptes Rendus. Mécanique %D 2022 %I Académie des sciences, Paris %Z Online first %R 10.5802/crmeca.115 %G en %F CRMECA_2022__350_S1_A4_0