| article html file updated | 9 February 2020 06:45 CET | Update | https://www.mdpi.com/2076-0760/7/2/29 |
| article html file updated | 1 May 2019 18:10 CEST | Update | - |
| article html file updated | 17 April 2019 17:30 CEST | Update | - |
| article html file updated | 28 March 2019 23:35 CET | Update | - |
| article html file updated | 22 February 2018 11:30 CET | Original file | - |
| article xml uploaded. | 22 February 2018 11:29 CET | Original file | https://www.mdpi.com/2076-0760/7/2/29/xml |
| article pdf uploaded. | 22 February 2018 11:29 CET | Updated version of record | https://www.mdpi.com/2076-0760/7/2/29/pdf |
| article pdf uploaded. | 15 February 2018 11:33 CET | Version of Record | https://www.mdpi.com/2076-0760/7/2/29/pdf-vor |
