| article html file updated | 6 February 2020 09:54 CET | Update | https://www.mdpi.com/2079-4991/4/2/454 |
| article html file updated | 7 May 2019 13:14 CEST | Update | - |
| article html file updated | 21 March 2019 18:42 CET | Update | - |
| article html file updated | 16 February 2017 04:03 CET | Update | - |
| article html file updated | 20 August 2015 09:43 CEST | Update | - |
| article html file updated | 15 September 2014 06:08 CEST | Original file | - |
| article xml file uploaded | 15 September 2014 06:08 CEST | Original file | https://www.mdpi.com/2079-4991/4/2/454/xml |
| article pdf uploaded. | 12 June 2014 13:32 CEST | Version of Record | https://www.mdpi.com/2079-4991/4/2/454/pdf |
