@article{CRMATH_2013__351_19-20_743_0,
     author = {Ammar Khodja, Farid and Benabdallah, Assia and Gonz\'alez-Burgos, Manuel and de Teresa, Luz},
     title = {A new relation between the condensation index of complex sequences and the null controllability of parabolic systems},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {743--746},
     publisher = {Elsevier},
     volume = {351},
     number = {19-20},
     year = {2013},
     doi = {10.1016/j.crma.2013.09.014},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2013.09.014/}
}