| article html file updated | 7 February 2020 00:26 CET | Update | https://www.mdpi.com/2076-328X/5/4/477 |
| article html file updated | 6 May 2019 08:00 CEST | Update | - |
| article html file updated | 26 March 2019 13:48 CET | Original file | - |
| article pdf uploaded. | 2 November 2015 03:50 CET | Updated version of record | https://www.mdpi.com/2076-328X/5/4/477/pdf |
| article pdf uploaded. | 30 October 2015 16:36 CET | Version of Record | https://www.mdpi.com/2076-328X/5/4/477/pdf-vor |
