| article html file updated | 9 February 2020 02:27 CET | Update | https://www.mdpi.com/2073-4433/9/1/13 |
| article html file updated | 29 September 2019 18:43 CEST | Update | - |
| article html file updated | 2 May 2019 03:31 CEST | Update | - |
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| article html file updated | 28 March 2019 14:08 CET | Update | - |
| article html file updated | 1 February 2018 07:47 CET | Update | - |
| article html file updated | 9 January 2018 14:53 CET | Original file | - |
| article xml uploaded. | 9 January 2018 14:52 CET | Update | https://www.mdpi.com/2073-4433/9/1/13/xml |
| article pdf uploaded. | 9 January 2018 14:52 CET | Version of Record | https://www.mdpi.com/2073-4433/9/1/13/pdf |
