| article html file updated | 9 February 2020 13:23 CET | Update | https://www.mdpi.com/2075-4442/6/2/34 |
| article html file updated | 2 October 2019 12:12 CEST | Update | - |
| article html file updated | 1 May 2019 04:21 CEST | Update | - |
| article html file updated | 17 April 2019 04:39 CEST | Update | - |
| article html file updated | 29 March 2019 14:41 CET | Update | - |
| article html file updated | 27 June 2018 10:06 CEST | Update | - |
| article html file updated | 11 April 2018 14:53 CEST | Original file | - |
| article xml uploaded. | 11 April 2018 14:50 CEST | Update | https://www.mdpi.com/2075-4442/6/2/34/xml |
| article pdf uploaded. | 11 April 2018 14:50 CEST | Version of Record | https://www.mdpi.com/2075-4442/6/2/34/pdf |
