| article html file updated | 6 February 2020 07:29 CET | Update | https://www.mdpi.com/2224-2708/3/1/79 |
| article html file updated | 7 May 2019 18:12 CEST | Update | - |
| article html file updated | 21 March 2019 12:53 CET | Update | - |
| article html file updated | 20 July 2017 08:26 CEST | Update | - |
| article html file updated | 20 July 2017 08:25 CEST | Update | - |
| article html file updated | 20 July 2017 08:24 CEST | Original file | - |
| article xml uploaded. | 20 July 2017 08:23 CEST | Original file | https://www.mdpi.com/2224-2708/3/1/79/xml |
| article pdf uploaded. | 24 February 2014 13:47 CET | Version of Record | https://www.mdpi.com/2224-2708/3/1/79/pdf |
