| article html file updated | 7 February 2020 20:56 CET | Update | https://www.mdpi.com/2073-4360/9/1/19 |
| article html file updated | 22 September 2019 18:45 CEST | Update | N/A |
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| article html file updated | 18 March 2019 05:39 CET | Update | N/A |
| article html file updated | 7 February 2017 10:29 CET | Update | N/A |
| article html file updated | 6 January 2017 13:35 CET | Original file | N/A |
| article xml uploaded. | 6 January 2017 13:34 CET | Original file | https://www.mdpi.com/2073-4360/9/1/19/xml |
| article pdf uploaded. | 6 January 2017 13:34 CET | Version of Record | https://www.mdpi.com/2073-4360/9/1/19/pdf |
