| article html file updated | 11 February 2020 04:30 CET | Update | https://www.mdpi.com/2076-3921/8/1/2 |
| article html file updated | 12 October 2019 07:06 CEST | Update | N/A |
| article html file updated | 27 April 2019 16:24 CEST | Update | N/A |
| article html file updated | 13 April 2019 12:16 CEST | Update | N/A |
| article html file updated | 2 April 2019 16:45 CEST | Update | N/A |
| article html file updated | 29 January 2019 02:13 CET | Update | N/A |
| article html file updated | 21 December 2018 07:04 CET | Original file | N/A |
| article pdf uploaded. | 21 December 2018 07:03 CET | Version of Record | https://www.mdpi.com/2076-3921/8/1/2/pdf |
| article xml uploaded. | 21 December 2018 07:03 CET | Update | https://www.mdpi.com/2076-3921/8/1/2/xml |
| article xml file uploaded | 21 December 2018 07:03 CET | Original file | N/A |
