| article html file updated | 9 February 2020 01:57 CET | Update | https://www.mdpi.com/2076-3425/8/1/9 |
| article html file updated | 29 September 2019 16:02 CEST | Update | N/A |
| article html file updated | 2 May 2019 04:31 CEST | Update | N/A |
| article html file updated | 18 April 2019 02:35 CEST | Update | N/A |
| article html file updated | 28 March 2019 13:00 CET | Update | N/A |
| article html file updated | 1 February 2018 13:58 CET | Update | N/A |
| article html file updated | 4 January 2018 07:37 CET | Original file | N/A |
| article xml uploaded. | 4 January 2018 07:36 CET | Original file | https://www.mdpi.com/2076-3425/8/1/9/xml |
| article pdf uploaded. | 4 January 2018 07:36 CET | Version of Record | https://www.mdpi.com/2076-3425/8/1/9/pdf |
