| article html file updated | 7 February 2020 12:09 CET | Update | https://www.mdpi.com/2226-4787/4/3/23 |
| article html file updated | 21 September 2019 21:33 CEST | Update | - |
| article html file updated | 5 May 2019 09:20 CEST | Update | - |
| article html file updated | 27 March 2019 11:08 CET | Update | - |
| article html file updated | 29 September 2016 09:42 CEST | Update | - |
| article html file updated | 22 July 2016 11:43 CEST | Original file | - |
| article xml uploaded. | 22 July 2016 11:42 CEST | Original file | https://www.mdpi.com/2226-4787/4/3/23/xml |
| article pdf uploaded. | 22 July 2016 11:42 CEST | Version of Record | https://www.mdpi.com/2226-4787/4/3/23/pdf |
