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The 11 references without a DOI — listed, not checked
no DOI — not checkedAlonso O, Chamorro JM, Gonzalez X (2003) Spillovers geográficos y sectoriales de la industria. Revista de Economía Aplicada 32:77–95
no DOI — not checkedDaumal M, Zignago S (2008) Border effects of Brazilian states. Working Papers 2008-11, CEPII Research Center
no DOI — not checkedDeardorff AV (1998) Determinants of bilateral trade: does gravity work in a neoclassic world? In: Frankel JA (ed) The regionalization of the world economy. University of Chicago Press, Chicago
no DOI — not checkedHead K, Mayer T (2002) Illusory border effects: distance mismeasurement inflates estimates of home bias in trade. CEPII working paper no 2002-01
no DOI — not checkedHelliwell JF (1998) How much do national borders matter?. Brookings Institution Press, Washington, DC
no DOI — not checkedHelliwell JF, Verdier G (2001) Measuring internal trade distances: a new method applied to estimate provincial border effects in Canada. Can J Econ 35(3):517–530
no DOI — not checkedLlano C (2004a) Economía sectorial y espacial: el comercio interregional en el marco input-output. Instituto de Estudios Fiscales. Colección Investigaciones, No.1, 2004
no DOI — not checkedLlano C (2004b) The interregional trade in the context of a multirregional input–output model for Spain. Estudios de Economía Aplicada 22(3):1–34
no DOI — not checkedLlano C, Esteban A, Pulido A, Pérez J (2008) La base de datos C-intereg sobre el comercio interregional de bienes en España (1995–2006): metodología. Documento de trabajo. Instituto L. Klein. Centro Stone. Septiembre 2008. www.c-intereg.es
no DOI — not checkedMcCallum J (1995) National borders matter: Canadian–US regional trade patterns. Am Econ Rev 85(3):615–623
no DOI — not checkedPérez J, Llano C, García G (2009) Valoración de las tablas input-output interregionales de la economía española. Revista del ICE 848:37–65
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