为一份学术论文提供适当的引用，并按照APA格式生成参考文献。


论文题目：可持续性和生态考虑在建筑和城市规划中的实践
论文作者：Jane Doe
引用所需来源：一篇有关建筑物节能的学术论文
引用：Smith, J. (2018). Energy-saving strategies in building design. Journal of Sustainable Architecture, 10(2), 45-56.

参考文献：

Smith, J. (2018). Energy-saving strategies in building design. Journal of Sustainable Architecture, 10(2), 45-56.

Doe, J. (2021). Sustainable and ecological considerations in building and urban planning practices (Unpublished manuscript). University of XYZ.