| article html file updated | 7 February 2020 18:26 CET | Update | https://www.mdpi.com/2075-4701/6/11/291 |
| article html file updated | 4 May 2019 21:43 CEST | Update | - |
| article html file updated | 30 November 2016 05:47 CET | Update | - |
| article html file updated | 23 November 2016 04:19 CET | Original file | - |
| article xml uploaded. | 23 November 2016 04:18 CET | Update | https://www.mdpi.com/2075-4701/6/11/291/xml |
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| article pdf uploaded. | 23 November 2016 04:18 CET | Version of Record | https://www.mdpi.com/2075-4701/6/11/291/pdf |
