Media type: E-Article Title: Brazilian Railways Relations of Production Density, Scale, Scope and Efficiency Contributor: Da Silva, Francisco Gildemir Ferreira Published: Elsevier BV, 2020 Published in: SSRN Electronic Journal (2020) Language: English DOI: 10.2139/ssrn.3681559 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: