| article html file updated | 17 September 2021 07:41 CEST | Update | https://www.mdpi.com/2071-1050/9/4/552 |
| article html file updated | 17 September 2021 07:41 CEST | Update | N/A |
| article xml uploaded. | 17 September 2021 07:40 CEST | Update | https://www.mdpi.com/2071-1050/9/4/552/xml |
| article html file updated | 8 February 2020 02:54 CET | Update | N/A |
| article html file updated | 24 September 2019 04:01 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:35 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:55 CEST | Update | N/A |
| article html file updated | 6 April 2017 11:22 CEST | Original file | N/A |
| article pdf uploaded. | 6 April 2017 11:21 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/552/pdf |
| article pdf uploaded. | 5 April 2017 05:53 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/552/pdf-vor |
