@inproceedings{RettingerZhengBraunmuehl2002, author = {Robert Rettinger and Xizhong Zheng and Burchard von Braunm{\"u}hl}, title = {Computable Real Functions of Bounded Variation and semi-Computable Real Numbers}, booktitle = {Computing and combinatorics, 8th annual international conference, COCOON 2002, Singapore, August 15 - 17, 2002}, editor = {H. Ibarra Oscar}, pages = {47 -- 56}, year = {2002}, }