Norma relacionada
Practice Relating to Rule 8. Definition of Military Objectives
Section G. Economic installations
Switzerland’s Basic Military Manual (1987) considers “plants, factories and establishments directly linked to the activity of the armed forces” as military objectives. 
Switzerland, Lois et coutumes de la guerre (Extrait et commentaire), Règlement 51.7/II f, Armée Suisse, 1987, Article 28.