Bai, Y. F., Chen, J., Wu, D. B., Song, Z. M., Gong, C., Yu, Z. M., & Wu, K. (2015). Study on the influencing factors and strategies of sorted collection of urban refuse in China. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, 2, 51-55. https://doi.org/10.17770/etr2015vol2.631