 See e.g. Lachapelle\textit{et al \mbox{%DIFAUXCMD \cite{LLLL }\hspace{0pt}%DIFAUXCMD and the references therein}  .
<meaning-changed>  See e.g. Lachapelle\textit{et al \mbox{%DIFAUXCMD \cite{LLLL }\hspace{0pt}%DIFAUXCMD and the references therein}  .
 See e.g. Lachapelle\textit{et al \mbox{%DIFAUXCMD \cite{LLLL }\hspace{0pt}%DIFAUXCMD and the references therein} However, the situation in the case of jumps is not clear. Moreover, it is not clear what happens if there is a delay in the system .