?url_ver=Z39.88-2004&rft_id=doi%3A10.1068%2Fa100561&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Propoi%2C+A.&rft.aulast=Propoi&rft.aufirst=A.&rft.issue=5&rft.volume=10&rft.date=21+February+1978&rft.issn=0308-518X&rft.atitle=A+Dynamic+Linear-Programming+Approach+to+the+Planning+of+National+Settlement+Systems&rft.title=Environment+and+Planning+A&rft.pages=561-576&rft.genre=article