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Created page with "== Target Article == The economics of urban transportation; KA Small, ET Verhoef, Lindsey ; 2007; doi_citing_unknown == Retraction == RETRACTED: Dip effect and its disappearance; Lin, J.W.; Leng, X.; Liu, G.; Luo, H.; Liu, Y.; Ding, S.Y.; ; 2003-4-01 ; https://doi.org/10.1016/s0921-4534(02)02225-6 == Citation piece == Note: Open to append information."