| article html file updated | 7 February 2020 06:24 CET | Update | https://www.mdpi.com/2071-1050/8/4/293 |
| article html file updated | 5 May 2019 20:26 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:19 CET | Update | N/A |
| article html file updated | 29 April 2016 05:38 CEST | Update | N/A |
| article html file updated | 25 March 2016 09:01 CET | Original file | N/A |
| article xml uploaded. | 25 March 2016 08:59 CET | Original file | https://www.mdpi.com/2071-1050/8/4/293/xml |
| article pdf uploaded. | 25 March 2016 08:59 CET | Version of Record | https://www.mdpi.com/2071-1050/8/4/293/pdf |
