internships (in collaboration with D. Pasquier~\cite{Pasquierc})?
We then formalized these time-indexed variables into {\bf vector variables},
where a variable is modeled by a time-set vector.
internships (in collaboration with D. Pasquier~\cite{Pasquierc})?
We then formalized these time-indexed variables into {\bf vector variables},
where a variable is modeled by a time-set vector.