April 24, 2024 Tu, X., G. Huang and J. Wu. 2018. Contrary to common observations in the West, urban park access is only weakly related to socioeconomic conditions in Beijing, China. Sustainability 4(1115):. Home » Tu, X., G. Huang and J. Wu. 2018. Contrary to common observations in the West, urban park access is only weakly related to socioeconomic conditions in Beijing, China. Sustainability 4(1115):.