@article{CRMATH_2008__346_5-6_293_0,
     author = {Elin, Mark and Shoikhet, David and Zalcman, Lawrence},
     title = {A flower structure of backward flow invariant domains for semigroups},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {293--296},
     publisher = {Elsevier},
     volume = {346},
     number = {5-6},
     year = {2008},
     doi = {10.1016/j.crma.2007.11.024},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2007.11.024/}
}