title = "Density functional perturbation theory with spin-orbit
coupling: Phonon band structure of lead",
author = "Matthieu J. Verstraete and Marc Torrent and
- Fran\ifmmode \mbox{\c{c}}\else \c{c}\fi{}ois Jollet and
+ Fran\mbox{\c{c}}ois Jollet and
Gilles Z\'erah and Xavier Gonze",
journal = "Phys. Rev. B",
volume = "78",