| article html file updated | 30 August 2025 01:15 CEST | Update | https://www.mdpi.com/2218-273X/7/4/70 |
| article html file updated | 16 July 2022 06:28 CEST | Update | - |
| article html file updated | 8 February 2020 16:55 CET | Update | - |
| article html file updated | 27 September 2019 07:35 CEST | Update | - |
| article html file updated | 3 May 2019 00:34 CEST | Update | - |
| article html file updated | 14 March 2018 17:47 CET | Update | - |
| article html file updated | 3 January 2018 09:04 CET | Update | - |
| article html file updated | 22 September 2017 16:30 CEST | Original file | - |
| article xml uploaded. | 22 September 2017 16:28 CEST | Original file | https://www.mdpi.com/2218-273X/7/4/70/xml |
| article pdf uploaded. | 22 September 2017 16:28 CEST | Version of Record | https://www.mdpi.com/2218-273X/7/4/70/pdf |
