| article html file updated | 9 February 2020 02:07 CET | Update | https://www.mdpi.com/2075-4450/9/1/2 |
| article html file updated | 29 September 2019 16:53 CEST | Update | N/A |
| article html file updated | 2 May 2019 04:11 CEST | Update | N/A |
| article html file updated | 18 April 2019 02:17 CEST | Update | N/A |
| article html file updated | 28 March 2019 13:23 CET | Update | N/A |
| article html file updated | 27 March 2018 14:35 CEST | Update | N/A |
| article html file updated | 5 January 2018 13:54 CET | Original file | N/A |
| article xml uploaded. | 5 January 2018 13:53 CET | Original file | https://www.mdpi.com/2075-4450/9/1/2/xml |
| article pdf uploaded. | 5 January 2018 13:53 CET | Version of Record | https://www.mdpi.com/2075-4450/9/1/2/pdf |
