| article html file updated | 30 August 2025 03:30 CEST | Update | https://www.mdpi.com/2227-9091/6/2/38 |
| article html file updated | 16 July 2022 10:46 CEST | Update | - |
| article html file updated | 9 February 2020 13:58 CET | Update | - |
| article html file updated | 2 October 2019 15:51 CEST | Update | - |
| article html file updated | 1 May 2019 03:11 CEST | Update | - |
| article html file updated | 17 April 2019 03:37 CEST | Update | - |
| article html file updated | 29 March 2019 16:01 CET | Update | - |
| article html file updated | 27 June 2018 09:53 CEST | Update | - |
| article html file updated | 2 May 2018 15:47 CEST | Update | - |
| article xml uploaded. | 2 May 2018 15:42 CEST | Update | https://www.mdpi.com/2227-9091/6/2/38/xml |
| article pdf uploaded. | 2 May 2018 15:42 CEST | Updated version of record | https://www.mdpi.com/2227-9091/6/2/38/pdf |
| article html file updated | 16 April 2018 12:05 CEST | Original file | - |
| article pdf uploaded. | 16 April 2018 12:04 CEST | Version of Record | https://www.mdpi.com/2227-9091/6/2/38/pdf-vor |
| article xml file uploaded | 16 April 2018 12:04 CEST | Original file | - |