Research on the green transformation of industry in resource-based cities 并列题名：Research on the green transformation of industry in resource-based cities Research on industrial transformation and innovation of resource-based cities in China Research on the green transformation of Chinese industry under informal environmental regulation 并列题名：Research on industrial transformation and innovation of resource-based cities in China Study on the transformation of coal resource-exhausted cities Evolution and transformation of resource-based cities Industrial transformation of resource-based cities 并列题名：Research on the green transformation of Chinese industry under informal environmental regulation Research on innovation of economic transformation path of resource-based region