%0 Journal Article %A Fritz Riehle %T Towards a redefinition of the second based on optical atomic clocks %J Comptes Rendus. Physique %D 2015 %P 506-515 %V 16 %N 5 %I Elsevier %R 10.1016/j.crhy.2015.03.012 %G en %F CRPHYS_2015__16_5_506_0