| article html file updated | 30 August 2025 03:24 CEST | Update | https://www.mdpi.com/2227-7390/6/4/58 |
| article html file updated | 21 August 2025 19:55 CEST | Update | - |
| article html file updated | 16 July 2022 10:35 CEST | Update | - |
| article html file updated | 9 February 2020 13:07 CET | Update | - |
| article html file updated | 2 October 2019 10:32 CEST | Update | - |
| article html file updated | 1 May 2019 04:53 CEST | Update | - |
| article html file updated | 17 April 2019 05:08 CEST | Update | - |
| article html file updated | 29 March 2019 14:04 CET | Update | - |
| article html file updated | 1 May 2018 05:22 CEST | Update | - |
| article html file updated | 13 April 2018 11:06 CEST | Update | - |
| article html file updated | 13 April 2018 11:05 CEST | Original file | - |
| article pdf uploaded. | 13 April 2018 11:04 CEST | Updated version of record | https://www.mdpi.com/2227-7390/6/4/58/pdf |
| article xml file uploaded | 13 April 2018 11:04 CEST | Update | https://www.mdpi.com/2227-7390/6/4/58/xml |
| article pdf uploaded. | 13 April 2018 11:04 CEST | Updated version of record | - |
| article xml file uploaded | 13 April 2018 11:04 CEST | Original file | - |
