| article html file updated | 30 August 2025 00:39 CEST | Update | https://www.mdpi.com/1999-4915/9/3/51 |
| article html file updated | 16 July 2022 05:21 CEST | Update | - |
| article html file updated | 8 February 2020 01:44 CET | Update | - |
| article html file updated | 23 September 2019 21:18 CEST | Update | - |
| article html file updated | 4 May 2019 06:07 CEST | Update | - |
| article html file updated | 30 March 2017 06:11 CEST | Update | - |
| article html file updated | 18 March 2017 10:16 CET | Original file | - |
| article xml uploaded. | 18 March 2017 10:14 CET | Original file | https://www.mdpi.com/1999-4915/9/3/51/xml |
| article pdf uploaded. | 18 March 2017 10:14 CET | Version of Record | https://www.mdpi.com/1999-4915/9/3/51/pdf |