VAN VLIJMEN, B. Problem Positions and Nineteen Instances in the Smog Control Case Los Angeles County 1943-1976. Transmathematica, [S. l.], 2025. DOI: 10.36285/tm.115. Disponível em: https://transmathematica.org/index.php/journal/article/view/115. Acesso em: 19 may. 2026.