| article html file updated | 7 February 2020 10:49 CET | Update | https://www.mdpi.com/2227-7099/4/3/12 |
| article html file updated | 5 May 2019 11:44 CEST | Update | - |
| article html file updated | 27 March 2019 08:39 CET | Update | - |
| article html file updated | 29 September 2016 11:55 CEST | Update | - |
| article html file updated | 27 June 2016 09:38 CEST | Original file | - |
| article xml uploaded. | 27 June 2016 09:37 CEST | Update | https://www.mdpi.com/2227-7099/4/3/12/xml |
| article pdf uploaded. | 27 June 2016 09:37 CEST | Version of Record | https://www.mdpi.com/2227-7099/4/3/12/pdf |
