| article html file updated | 6 February 2020 23:36 CET | Update | https://www.mdpi.com/2076-2607/3/4/625 |
| article html file updated | 6 May 2019 09:41 CEST | Update | - |
| article html file updated | 26 March 2019 12:15 CET | Update | - |
| article html file updated | 18 May 2016 12:29 CEST | Original file | - |
| article pdf uploaded. | 12 October 2015 04:27 CEST | Updated version of record | https://www.mdpi.com/2076-2607/3/4/625/pdf |
| article pdf uploaded. | 10 October 2015 08:46 CEST | Version of Record | https://www.mdpi.com/2076-2607/3/4/625/pdf-vor |
