| article html file updated | 9 February 2020 00:51 CET | Update | https://www.mdpi.com/2076-3417/8/1/6 |
| article html file updated | 29 September 2019 09:46 CEST | Update | - |
| article html file updated | 2 May 2019 06:53 CEST | Update | - |
| article html file updated | 18 April 2019 04:47 CEST | Update | - |
| article html file updated | 28 March 2019 10:19 CET | Update | - |
| article html file updated | 1 February 2018 09:38 CET | Update | - |
| article html file updated | 22 December 2017 08:27 CET | Original file | - |
| article xml uploaded. | 22 December 2017 08:26 CET | Update | https://www.mdpi.com/2076-3417/8/1/6/xml |
| article xml uploaded. | 22 December 2017 08:26 CET | Original file | - |
| article pdf uploaded. | 22 December 2017 08:26 CET | Version of Record | https://www.mdpi.com/2076-3417/8/1/6/pdf |
