The central system, essentially international although under French responsibility, could not remain without control.

This system remained in place throughout the life of the Republic.

The central and northern systems would remain to be linked.

This system remained in place until the early 20th century.

This system remained in use for over 100 years until the 1930s.

This basic system remains in use today around the world.

Aside from the 1950-1968 period, this system has remained in place until today.

This system remained in place for the 1942-43 and 1943-44 seasons.

This system remained in place until the end of the 1963-64 season.

The system must remain, because we're all just passing through.