| article html file updated | 9 February 2020 04:05 CET | Update | https://www.mdpi.com/2075-1680/7/1/8 |
| article html file updated | 30 September 2019 03:58 CEST | Update | N/A |
| article html file updated | 2 May 2019 00:05 CEST | Update | N/A |
| article html file updated | 17 April 2019 22:36 CEST | Update | N/A |
| article html file updated | 28 March 2019 17:49 CET | Update | N/A |
| article html file updated | 26 March 2018 15:31 CEST | Update | N/A |
| article html file updated | 23 January 2018 16:49 CET | Original file | N/A |
| article xml uploaded. | 23 January 2018 16:48 CET | Original file | https://www.mdpi.com/2075-1680/7/1/8/xml |
| article pdf uploaded. | 23 January 2018 16:48 CET | Version of Record | https://www.mdpi.com/2075-1680/7/1/8/pdf |
