| article html file updated | 30 August 2025 01:42 CEST | Update | https://www.mdpi.com/2306-7381/4/4/55 |
| article html file updated | 21 August 2025 19:26 CEST | Update | - |
| article html file updated | 16 July 2022 07:24 CEST | Update | - |
| article html file updated | 8 February 2020 21:16 CET | Update | - |
| article html file updated | 28 September 2019 11:59 CEST | Update | - |
| article html file updated | 2 May 2019 14:51 CEST | Update | - |
| article html file updated | 18 April 2019 12:29 CEST | Update | - |
| article html file updated | 2 January 2018 20:43 CET | Update | - |
| article html file updated | 23 November 2017 05:06 CET | Update | - |
| article xml uploaded. | 23 November 2017 05:05 CET | Update | https://www.mdpi.com/2306-7381/4/4/55/xml |
| article xml uploaded. | 23 November 2017 05:05 CET | Update | - |
| article pdf uploaded. | 23 November 2017 05:05 CET | Updated version of record | https://www.mdpi.com/2306-7381/4/4/55/pdf |
| article html file updated | 15 November 2017 11:52 CET | Original file | - |
| article xml uploaded. | 15 November 2017 11:51 CET | Original file | - |
| article pdf uploaded. | 15 November 2017 11:51 CET | Version of Record | https://www.mdpi.com/2306-7381/4/4/55/pdf-vor |
