| article html file updated | 6 February 2020 07:30 CET | Update | https://www.mdpi.com/2073-4468/3/1/153 |
| article html file updated | 7 May 2019 18:10 CEST | Update | - |
| article html file updated | 21 March 2019 12:55 CET | Update | - |
| article html file updated | 19 August 2015 21:33 CEST | Update | - |
| article html file updated | 27 November 2014 04:17 CET | Original file | - |
| article xml file uploaded | 27 November 2014 04:17 CET | Original file | https://www.mdpi.com/2073-4468/3/1/153/xml |
| article pdf uploaded. | 25 February 2014 11:10 CET | Version of Record | https://www.mdpi.com/2073-4468/3/1/153/pdf |
