| article html file updated | 9 February 2020 12:25 CET | Update | https://www.mdpi.com/2076-0760/7/4/55 |
| article html file updated | 1 May 2019 06:19 CEST | Update | - |
| article html file updated | 17 April 2019 06:24 CEST | Update | - |
| article html file updated | 29 March 2019 12:28 CET | Update | - |
| article html file updated | 5 April 2018 13:59 CEST | Original file | - |
| article xml uploaded. | 5 April 2018 13:57 CEST | Original file | https://www.mdpi.com/2076-0760/7/4/55/xml |
| article pdf uploaded. | 5 April 2018 13:57 CEST | Updated version of record | https://www.mdpi.com/2076-0760/7/4/55/pdf |
| article pdf uploaded. | 3 April 2018 18:22 CEST | Version of Record | https://www.mdpi.com/2076-0760/7/4/55/pdf-vor |
