| article html file updated | 30 August 2025 00:40 CEST | Update | https://www.mdpi.com/2071-1050/9/3/474 |
| article html file updated | 16 July 2022 05:24 CEST | Update | N/A |
| article html file updated | 8 February 2020 01:57 CET | Update | N/A |
| article html file updated | 4 May 2019 05:38 CEST | Update | N/A |
| article html file updated | 28 March 2017 06:18 CEST | Update | N/A |
| article html file updated | 27 March 2017 05:23 CEST | Update | N/A |
| article html file updated | 24 March 2017 07:00 CET | Update | N/A |
| article html file updated | 22 March 2017 09:47 CET | Original file | N/A |
| article xml uploaded. | 22 March 2017 09:46 CET | Original file | https://www.mdpi.com/2071-1050/9/3/474/xml |
| article pdf uploaded. | 22 March 2017 09:46 CET | Version of Record | https://www.mdpi.com/2071-1050/9/3/474/pdf |
