| article html file updated | 30 August 2025 00:26 CEST | Update | https://www.mdpi.com/2076-3921/6/1/15 |
| article html file updated | 21 August 2025 19:16 CEST | Update | N/A |
| article html file updated | 16 July 2022 04:56 CEST | Update | N/A |
| article html file updated | 7 February 2020 23:45 CET | Update | N/A |
| article html file updated | 23 September 2019 09:58 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:32 CEST | Update | N/A |
| article html file updated | 29 March 2017 08:17 CEST | Update | N/A |
| article html file updated | 19 February 2017 08:53 CET | Original file | N/A |
| article xml uploaded. | 19 February 2017 08:52 CET | Original file | https://www.mdpi.com/2076-3921/6/1/15/xml |
| article pdf uploaded. | 19 February 2017 08:52 CET | Version of Record | https://www.mdpi.com/2076-3921/6/1/15/pdf |
