| article html file updated | 6 February 2020 21:59 CET | Update | https://www.mdpi.com/2073-4409/4/3/427 |
| article html file updated | 6 May 2019 13:01 CEST | Update | - |
| article html file updated | 26 March 2019 09:11 CET | Update | - |
| article html file updated | 27 October 2017 09:16 CEST | Update | - |
| article html file updated | 30 September 2015 12:00 CEST | Original file | - |
| article xml file uploaded | 30 September 2015 12:00 CEST | Original file | https://www.mdpi.com/2073-4409/4/3/427/xml |
| article pdf uploaded. | 21 August 2015 12:17 CEST | Version of Record | https://www.mdpi.com/2073-4409/4/3/427/pdf |
