?url_ver=Z39.88-2004&rft_id=10.1068%2Fa100577&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Kulikowski%2C+R.&rft.aulast=Kulikowski&rft.aufirst=R.&rft.issue=5&rft.volume=10&rft.date=May+1978&rft.issn=0308-518X&rft.atitle=Optimization+of+Rural%E2%80%94Urban+Development+and+Migration&rft.title=Environment+and+Planning+A&rft.pages=577-591&rft.genre=article