| article html file updated | 7 February 2020 11:01 CET | Update | https://www.mdpi.com/2227-7099/4/3/13 |
| article html file updated | 5 May 2019 11:23 CEST | Update | - |
| article html file updated | 27 March 2019 09:01 CET | Update | - |
| article html file updated | 29 September 2016 11:56 CEST | Update | - |
| article html file updated | 30 June 2016 08:43 CEST | Original file | - |
| article xml uploaded. | 30 June 2016 08:42 CEST | Original file | https://www.mdpi.com/2227-7099/4/3/13/xml |
| article pdf uploaded. | 30 June 2016 08:42 CEST | Version of Record | https://www.mdpi.com/2227-7099/4/3/13/pdf |
