“KRAMER, Dr. Ludwig: Focus on European Environmental Law, London, Sweet & Maxwell, 321 págs”. Anuario Español de Derecho Internacional 12 (March 1, 1996): 1056–1060. Accessed July 5, 2025. https://revistas.unav.edu/index.php/anuario-esp-dcho-internacional/article/view/29169.