@article{CRMATH_2013__351_11-12_471_0,
     author = {Kim, Jong Ryul},
     title = {On extrinsic symmetric spaces with zero mean curvature in {Minkowski} space-time},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {471--475},
     publisher = {Elsevier},
     volume = {351},
     number = {11-12},
     year = {2013},
     doi = {10.1016/j.crma.2013.06.005},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2013.06.005/}
}