| article html file updated | 8 February 2020 20:13 CET | Update | https://new.mdpi.com/2071-1050/9/11/2013 |
| article html file updated | 28 September 2019 04:57 CEST | Update | - |
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| article html file updated | 30 November 2017 12:34 CET | Update | - |
| article html file updated | 14 November 2017 10:26 CET | Update | - |
| article xml uploaded. | 14 November 2017 10:24 CET | Update | https://new.mdpi.com/2071-1050/9/11/2013/xml |
| article pdf uploaded. | 14 November 2017 10:24 CET | Updated version of record | https://new.mdpi.com/2071-1050/9/11/2013/pdf |
| article html file updated | 3 November 2017 07:42 CET | Original file | - |
| article xml uploaded. | 3 November 2017 07:41 CET | Original file | - |
| article pdf uploaded. | 3 November 2017 07:41 CET | Version of Record | https://new.mdpi.com/2071-1050/9/11/2013/pdf-vor |
