| article html file updated | 7 February 2020 01:56 CET | Update | https://www.mdpi.com/2076-0760/4/4/1316 |
| article html file updated | 21 September 2019 07:26 CEST | Update | - |
| article html file updated | 6 May 2019 05:36 CEST | Update | - |
| article html file updated | 26 March 2019 15:59 CET | Original file | - |
| article pdf uploaded. | 10 December 2015 07:49 CET | Updated version of record | https://www.mdpi.com/2076-0760/4/4/1316/pdf |
| article pdf uploaded. | 8 December 2015 09:41 CET | Version of Record | https://www.mdpi.com/2076-0760/4/4/1316/pdf-vor |
