| article html file updated | 9 February 2020 14:42 CET | Update | https://www.mdpi.com/2076-0760/7/4/69 |
| article html file updated | 1 May 2019 01:46 CEST | Update | - |
| article html file updated | 17 April 2019 02:20 CEST | Update | - |
| article html file updated | 29 March 2019 17:44 CET | Update | - |
| article html file updated | 24 April 2018 05:31 CEST | Original file | - |
| article pdf uploaded. | 24 April 2018 05:30 CEST | Updated version of record | https://www.mdpi.com/2076-0760/7/4/69/pdf |
| article xml uploaded. | 24 April 2018 05:30 CEST | Update | https://www.mdpi.com/2076-0760/7/4/69/xml |
| article xml file uploaded | 24 April 2018 05:30 CEST | Original file | - |
