I have a problem with the Angewandte Chemie style. This journal wants the references grouped in the same number when they are citted at the same point, for example:
 → a) … b)… c)… d)…
The problem is when I cite a single reference followed with some of the multiple references. As an example, if my references are like the following:
 -> Bob et al
 → a) Susan et al…, b) Peter et al…, c) Alice et al…, d) Gonzalez et al
and I want to cite , [2a] and [2b], EndNote groupes them as [1-2], instead of [1, 2a, 2b]. I do not have this problem if I cite any other reference different than [2a], for example, [1, 2c, 2d].
I have tried to solve this problem with EndNote 7 and 8, but I have no idea to solve it.
Does anyone know the answer to this problem?
Thank you for your time!