| article html file updated | 11 February 2020 01:29 CET | Update | https://www.mdpi.com/2076-0787/7/4/129 |
| article html file updated | 27 April 2019 23:11 CEST | Update | - |
| article html file updated | 13 April 2019 19:04 CEST | Update | - |
| article html file updated | 2 April 2019 08:27 CEST | Update | - |
| article html file updated | 6 December 2018 02:31 CET | Original file | - |
| article pdf uploaded. | 6 December 2018 02:30 CET | Version of Record | https://www.mdpi.com/2076-0787/7/4/129/pdf |
| article xml uploaded. | 6 December 2018 02:30 CET | Update | https://www.mdpi.com/2076-0787/7/4/129/xml |
| article xml file uploaded | 6 December 2018 02:30 CET | Original file | - |
