I would like to ask a question regarding the citing an author's (own) research paper (that is still under review in a peer reviewed journal) in to his/her extension work which is reported in an other paper. The main concern is to let the first paper available for the reviewers and the general audience for an access which is still under peer review. What is the best way handle this situation? I understand that the first paper may be made available as "working paper". But the question arise,
1. Where to post that working paper? what is best place for that
2. More important, what is the best solution to solve this issue.
Kind Regards,