1. C J Harrison and T D Allen, in Cell Structure, eds. K E Carr and P G Toner, Churchill Livingstone, 154–155 (1982)
2. L Manuelids, J Sedat, R Feder: in Ultrasoft X-Ray Microscopy: Its Application to Biological and Physical Science, ed. D F Parsons, Annals of the New York Academy of Science, 342, 304–325 (1980)
3. K Shinohara, H Nakano, M Watanabe, Y Kinjo, S Kikuchi, Y Kagoshima, K Kobayshi and H Maezawa, in X-Ray Microscopy II, Springer Series in Optical Sciences Vol. 56, Eds. D Sayre, M Howells, J Kirz, HM Rarback, (Springer; Heidelberg) 429–432 (1988)
4. Shen Heng Jia, Wei Dao Yan, Xu Wen Xuan and Tang E Sheng: This volume.
5. Cheng-Zhi Jia, Zheng-Hong Zhou, Xing-Shu Xie, Tao Jin, Heng-Jia Shen, Bing Xu and Jin-Di Xia, in X-ray Microscopy in Biology and Medicine, Eds. K Shinohara, K Yada, H Kihara and T Saito (Japan Scientific Societies Press, Tokyo, and Springer-Verlag, Berlin ) 247–250 (1990)