| article html file updated | 7 February 2020 06:59 CET | Update | https://www.mdpi.com/2071-1050/8/4/348 |
| article html file updated | 5 May 2019 19:15 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:20 CET | Update | N/A |
| article html file updated | 29 April 2016 05:53 CEST | Update | N/A |
| article html file updated | 8 April 2016 08:35 CEST | Original file | N/A |
| article xml uploaded. | 8 April 2016 08:33 CEST | Original file | https://www.mdpi.com/2071-1050/8/4/348/xml |
| article pdf uploaded. | 8 April 2016 08:33 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/348/pdf |
