| article html file updated | 7 February 2020 10:07 CET | Update | https://www.mdpi.com/2073-4409/5/2/28 |
| article html file updated | 5 May 2019 13:02 CEST | Update | - |
| article html file updated | 27 March 2019 07:24 CET | Update | - |
| article html file updated | 27 October 2017 09:10 CEST | Update | - |
| article html file updated | 4 July 2016 12:15 CEST | Update | - |
| article html file updated | 14 June 2016 22:47 CEST | Original file | - |
| article xml uploaded. | 14 June 2016 09:57 CEST | Original file | https://www.mdpi.com/2073-4409/5/2/28/xml |
| article pdf uploaded. | 14 June 2016 09:57 CEST | Version of Record | https://www.mdpi.com/2073-4409/5/2/28/pdf |
