| article html file updated | 7 February 2020 06:04 CET | Update | https://www.mdpi.com/2071-1050/8/3/280 |
| article html file updated | 5 May 2019 21:06 CEST | Update | - |
| article html file updated | 26 March 2019 23:45 CET | Update | - |
| article html file updated | 31 March 2016 08:44 CEST | Original file | - |
| article xml uploaded. | 18 March 2016 09:41 CET | Original file | https://www.mdpi.com/2071-1050/8/3/280/xml |
| article pdf uploaded. | 18 March 2016 09:41 CET | Version of Record | https://www.mdpi.com/2071-1050/8/3/280/pdf |
