| article html file updated | 8 February 2020 03:41 CET | Update | https://www.mdpi.com/1420-3049/22/4/639 |
| article html file updated | 24 September 2019 08:21 CEST | Update | - |
| article html file updated | 4 May 2019 02:02 CEST | Update | - |
| article html file updated | 11 September 2018 05:10 CEST | Update | - |
| article html file updated | 28 April 2017 10:27 CEST | Update | - |
| article html file updated | 19 April 2017 13:26 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 13:25 CEST | Original file | https://www.mdpi.com/1420-3049/22/4/639/xml |
| article pdf uploaded. | 19 April 2017 13:25 CEST | Updated version of record | https://www.mdpi.com/1420-3049/22/4/639/pdf |
| article pdf uploaded. | 15 April 2017 11:18 CEST | Version of Record | https://www.mdpi.com/1420-3049/22/4/639/pdf-vor |
