@article{CRPHYS_2015__16_5_506_0,
     author = {Fritz Riehle},
     title = {Towards a redefinition of the second based on optical atomic clocks},
     journal = {Comptes Rendus. Physique},
     pages = {506--515},
     publisher = {Elsevier},
     volume = {16},
     number = {5},
     year = {2015},
     doi = {10.1016/j.crhy.2015.03.012},
     language = {en},
}