Jin-Yin Wu, Guang-Yu Yang, Jian-Ling Chen, Wen-Xue Li, Jun-Tao Li, Chuan-Xi Fu, Gao-Feng Jiang, and Wei Zhu. “Investigation for Pu-Erh Tea Contamination Caused by Mycotoxins in a Tea Market in Guangzhou”. Journal of Basic & Applied Sciences, vol. 10, Jan. 2014, pp. 349-56, doi:10.6000/1927-5129.2014.10.46.