| article html file updated | 8 February 2020 00:33 CET | Update | https://www.mdpi.com/1996-1073/10/3/291 |
| article html file updated | 23 September 2019 14:28 CEST | Update | - |
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| article html file updated | 28 March 2017 11:23 CEST | Update | - |
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| article xml uploaded. | 1 March 2017 12:59 CET | Original file | https://www.mdpi.com/1996-1073/10/3/291/xml |
| article pdf uploaded. | 1 March 2017 12:59 CET | Version of Record | https://www.mdpi.com/1996-1073/10/3/291/pdf |
