References
Catherine Hohenkerk
Iau standards of fundamental astronomy (sofa): time and date
2017
in: The science of time 2016, Dordrecht : Springer
The science of time 2016: time in astronomy & society, past, present and future2017
with Felicitas Arias Elisa, Combrinck Ludwig, Gabor Pavel (ed)
Dordrecht, Springer