| article html file updated | 6 February 2020 01:54 CET | Update | https://www.mdpi.com/2304-6767/1/2/12 |
| article html file updated | 19 September 2019 20:20 CEST | Update | - |
| article html file updated | 8 May 2019 05:32 CEST | Update | - |
| article html file updated | 20 March 2019 22:04 CET | Update | - |
| article html file updated | 17 June 2015 09:02 CEST | Update | - |
| article html file updated | 14 August 2014 11:41 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/2304-6767/1/2/12/xml |
| article html file updated | 14 August 2014 11:21 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 11:21 CEST | Original file | - |
| article pdf uploaded. | 6 May 2013 10:40 CEST | Version of Record | https://www.mdpi.com/2304-6767/1/2/12/pdf |
