4Sukkoo Kim and Robert A.Margo, historical perspectives on the U.S. , Economic geography, Handbook of Regional and Urban Economics, Volume 4, edited by Vernon Henderson and Jacquse-Francois Thisse.
5Fujita, M. and T. Tabuchi, Regional growth in postwar Japan,Regional Science and Urban Economics,Volume27,643-670.
6Alex Anax and Leon N.Moses, Regional growth, The Mature Metropolis, 149-168.