| article html file updated | 9 February 2020 11:16 CET | Update | https://www.mdpi.com/2075-1702/6/2/12 |
| article html file updated | 1 October 2019 23:29 CEST | Update | N/A |
| article html file updated | 1 May 2019 08:43 CEST | Update | N/A |
| article html file updated | 17 April 2019 08:38 CEST | Update | N/A |
| article html file updated | 29 March 2019 09:49 CET | Update | N/A |
| article html file updated | 26 June 2018 05:28 CEST | Update | N/A |
| article html file updated | 26 March 2018 10:15 CEST | Original file | N/A |
| article xml uploaded. | 26 March 2018 10:14 CEST | Original file | https://www.mdpi.com/2075-1702/6/2/12/xml |
| article pdf uploaded. | 26 March 2018 10:14 CEST | Version of Record | https://www.mdpi.com/2075-1702/6/2/12/pdf |
