Media type: E-Article Title: Marbles: The Application of Input-Output Concepts to Safety Management Systems Contributor: Brady, Tim; Stolzer, Alan; Brickhouse, Anthony; Cortés, Antonio; McCune, Dan; Raghavan, Jayathi; Freiwald, David imprint: Purdue University (bepress), 2015 Published in: Journal of Aviation Technology and Engineering Language: English DOI: 10.7771/2159-6670.1124 ISSN: 2159-6670 Origination: Footnote: Access State: Open Access