Hello,
This has been discusses elsewhere in the Forum: Combined volume/issue numbers
There seem to be good reasons for not supporting non-numeric content in the volume field, but for us this is still a problem. We might be able to convince editors of active journals to omit double volumes. However, in the case of journals with a long history of back issues, we cannot change retroactively the fact that in certain cases (especially in difficult times) it was decided to publish double volumes. We must still find a way to display this in OJS.