If you group them, then I think you have some problems. If you insert each citation one at a time with a space between them, I think you will get what you want. – You can edit the output style numbering (citations> numbering as in image) to deselect the “Use ranges for consecutive citations (e.g. 1-3 or 1a-f)” but then you may have some issues with the brackets, which can be dealt with in the citations>template settings. (see image 2) It took some trial and error to get the trailing bracket to appear, and not sure why, but I put