@inproceedings{chieh-yu2012algebraic,
title={Algebraic independence of periods and logarithms of Drinfeld modules. With an appendix by Brian Conrad.},
author={Chieh-Yu Chang, and Matthew A. Papanikolas},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20161115104859641281623},
booktitle={J. Amer. Math. Soc.},
volume={25},
number={1},
pages={123-150},
year={2012},
}
Chieh-Yu Chang, and Matthew A. Papanikolas. Algebraic independence of periods and logarithms of Drinfeld modules. With an appendix by Brian Conrad.. 2012. Vol. 25. In J. Amer. Math. Soc.. pp.123-150. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20161115104859641281623.