| article html file updated | 9 February 2020 02:39 CET | Update | https://www.mdpi.com/1996-1073/11/1/172 |
| article html file updated | 29 September 2019 19:46 CEST | Update | - |
| article html file updated | 2 May 2019 03:05 CEST | Update | - |
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| article html file updated | 28 March 2019 14:36 CET | Update | - |
| article html file updated | 1 February 2018 13:49 CET | Update | - |
| article html file updated | 11 January 2018 07:42 CET | Original file | - |
| article xml uploaded. | 11 January 2018 07:41 CET | Update | https://www.mdpi.com/1996-1073/11/1/172/xml |
| article xml uploaded. | 11 January 2018 07:41 CET | Update | - |
| article xml uploaded. | 11 January 2018 07:41 CET | Original file | - |
| article pdf uploaded. | 11 January 2018 07:41 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/172/pdf |
