Castellano M, Buonocunto C, Capello M, Ricciolino P. Stazioni sismiche obsolete: il recupero del sistema Lennartz PCM 5800. Quad. Geofis. [Internet]. 2007 Jan. 1 [cited 2026 Oct. 20];48:22. Available from: https://collane-editoriali.ingv.it/index.php/qdg/article/view/1596