| article html file updated | 8 February 2020 23:19 CET | Update | https://www.mdpi.com/2076-328X/7/4/81 |
| article html file updated | 29 September 2019 00:48 CEST | Update | - |
| article html file updated | 2 May 2019 10:15 CEST | Update | - |
| article html file updated | 18 April 2019 07:54 CEST | Update | - |
| article html file updated | 2 January 2018 11:40 CET | Update | - |
| article html file updated | 6 December 2017 12:00 CET | Original file | - |
| article xml uploaded. | 6 December 2017 11:59 CET | Original file | https://www.mdpi.com/2076-328X/7/4/81/xml |
| article pdf uploaded. | 6 December 2017 11:59 CET | Version of Record | https://www.mdpi.com/2076-328X/7/4/81/pdf |
