| article html file updated | 8 February 2020 01:05 CET | Update | https://www.mdpi.com/2225-1154/5/1/23 |
| article html file updated | 23 September 2019 17:41 CEST | Update | N/A |
| article html file updated | 4 May 2019 07:32 CEST | Update | N/A |
| article html file updated | 29 March 2017 10:21 CEST | Update | N/A |
| article html file updated | 9 March 2017 07:23 CET | Original file | N/A |
| article xml uploaded. | 9 March 2017 07:22 CET | Original file | https://www.mdpi.com/2225-1154/5/1/23/xml |
| article pdf uploaded. | 9 March 2017 07:22 CET | Version of Record | https://www.mdpi.com/2225-1154/5/1/23/pdf |
