| article html file updated | 7 February 2020 15:17 CET | Update | https://www.mdpi.com/2311-553X/2/3/8 |
| article html file updated | 5 May 2019 03:33 CEST | Update | - |
| article html file updated | 30 September 2016 03:29 CEST | Update | - |
| article html file updated | 29 September 2016 09:45 CEST | Update | - |
| article html file updated | 21 September 2016 10:08 CEST | Original file | - |
| article xml uploaded. | 21 September 2016 10:07 CEST | Update | https://www.mdpi.com/2311-553X/2/3/8/xml |
| article xml uploaded. | 21 September 2016 10:07 CEST | Original file | - |
| article pdf uploaded. | 21 September 2016 10:07 CEST | Version of Record | https://www.mdpi.com/2311-553X/2/3/8/pdf |
