Not a DOI

The resolution service at https://doi.org resolves DOIs. You have attempted to resolve core/journals/publications-of-the-astronomical-society-of-australia, which is not a DOI.

core/journals/publications-of-the-astronomical-society-of-australia may be a Handle (DOIs are a special sort of Handle). If core/journals/publications-of-the-astronomical-society-of-australia is a valid Handle you should be able to resolve it at https://hdl.handle.net.