| article html file updated | 9 February 2020 04:28 CET | Update | https://www.mdpi.com/2079-4991/8/2/68 |
| article html file updated | 30 September 2019 06:14 CEST | Update | N/A |
| article html file updated | 1 May 2019 23:18 CEST | Update | N/A |
| article html file updated | 17 April 2019 21:54 CEST | Update | N/A |
| article html file updated | 28 March 2019 18:37 CET | Update | N/A |
| article html file updated | 15 March 2018 08:09 CET | Update | N/A |
| article html file updated | 14 March 2018 16:40 CET | Update | N/A |
| article html file updated | 26 January 2018 15:45 CET | Original file | N/A |
| article xml uploaded. | 26 January 2018 15:43 CET | Update | https://www.mdpi.com/2079-4991/8/2/68/xml |
| article xml uploaded. | 26 January 2018 15:43 CET | Original file | N/A |
| article pdf uploaded. | 26 January 2018 15:43 CET | Version of Record | https://www.mdpi.com/2079-4991/8/2/68/pdf |
