| article html file updated | 9 February 2020 06:18 CET | Update | https://www.mdpi.com/2076-3921/7/2/29 |
| article html file updated | 30 September 2019 17:23 CEST | Update | N/A |
| article html file updated | 1 May 2019 19:09 CEST | Update | N/A |
| article html file updated | 17 April 2019 18:23 CEST | Update | N/A |
| article html file updated | 28 March 2019 22:38 CET | Update | N/A |
| article html file updated | 14 March 2018 08:22 CET | Update | N/A |
| article html file updated | 11 February 2018 10:39 CET | Original file | N/A |
| article xml uploaded. | 11 February 2018 10:38 CET | Original file | https://www.mdpi.com/2076-3921/7/2/29/xml |
| article pdf uploaded. | 11 February 2018 10:38 CET | Version of Record | https://www.mdpi.com/2076-3921/7/2/29/pdf |
