| article html file updated | 30 August 2025 00:47 CEST | Update | https://www.mdpi.com/2220-9964/6/7/227 |
| article html file updated | 16 July 2022 05:30 CEST | Update | - |
| article html file updated | 8 February 2020 11:40 CET | Update | - |
| article html file updated | 26 September 2019 02:21 CEST | Update | - |
| article html file updated | 3 May 2019 11:02 CEST | Update | - |
| article html file updated | 27 March 2019 17:03 CET | Update | - |
| article html file updated | 31 July 2017 07:34 CEST | Update | - |
| article html file updated | 21 July 2017 16:31 CEST | Update | - |
| article html file updated | 21 July 2017 16:30 CEST | Update | - |
| article html file updated | 21 July 2017 16:29 CEST | Original file | - |
| article xml uploaded. | 21 July 2017 16:28 CEST | Update | https://www.mdpi.com/2220-9964/6/7/227/xml |
| article pdf uploaded. | 21 July 2017 16:28 CEST | Updated version of record | https://www.mdpi.com/2220-9964/6/7/227/pdf |
