| article html file updated | 6 February 2020 14:29 CET | Update | https://www.mdpi.com/2075-471X/3/4/798 |
| article html file updated | 20 September 2019 16:03 CEST | Update | - |
| article html file updated | 7 May 2019 03:55 CEST | Update | - |
| article html file updated | 25 March 2019 19:19 CET | Update | - |
| article html file updated | 17 February 2017 06:30 CET | Original file | - |
| article pdf uploaded. | 19 December 2014 09:12 CET | Updated version of record | https://www.mdpi.com/2075-471X/3/4/798/pdf |
| article pdf uploaded. | 15 December 2014 13:46 CET | Version of Record | https://www.mdpi.com/2075-471X/3/4/798/pdf-vor |
