@article{CRMATH_2017__355_2_211_0,
     author = {Yang, Sen},
     title = {On the kernel of the regulator map},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {211--215},
     publisher = {Elsevier},
     volume = {355},
     number = {2},
     year = {2017},
     doi = {10.1016/j.crma.2017.01.006},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2017.01.006/}
}