| article html file updated | 6 February 2020 20:36 CET | Update | https://www.mdpi.com/2073-4409/4/3/253 |
| article html file updated | 6 May 2019 15:54 CEST | Update | - |
| article html file updated | 26 March 2019 06:28 CET | Update | - |
| article html file updated | 27 October 2017 09:15 CEST | Update | - |
| article html file updated | 30 September 2015 12:00 CEST | Update | - |
| article xml file uploaded | 30 September 2015 12:00 CEST | Original file | https://www.mdpi.com/2073-4409/4/3/253/xml |
| article html file updated | 21 August 2015 14:45 CEST | Original file | - |
| article pdf uploaded. | 13 July 2015 16:15 CEST | Version of Record | https://www.mdpi.com/2073-4409/4/3/253/pdf |
