| article html file updated | 30 August 2025 07:17 CEST | Update | https://www.mdpi.com/2218-2004/6/4/55 |
| article html file updated | 17 July 2022 03:34 CEST | Update | N/A |
| article html file updated | 10 February 2020 12:54 CET | Update | N/A |
| article html file updated | 8 October 2019 08:25 CEST | Update | N/A |
| article html file updated | 29 April 2019 01:55 CEST | Update | N/A |
| article html file updated | 14 April 2019 21:17 CEST | Update | N/A |
| article html file updated | 31 March 2019 23:02 CEST | Update | N/A |
| article html file updated | 26 December 2018 22:47 CET | Update | N/A |
| article html file updated | 28 September 2018 13:23 CEST | Update | N/A |
| article pdf uploaded. | 28 September 2018 13:11 CEST | Updated version of record | https://www.mdpi.com/2218-2004/6/4/55/pdf |
| article xml uploaded. | 28 September 2018 13:11 CEST | Update | https://www.mdpi.com/2218-2004/6/4/55/xml |
| article xml file uploaded | 28 September 2018 13:11 CEST | Update | N/A |
| article html file updated | 26 September 2018 13:25 CEST | Original file | N/A |
| article pdf uploaded. | 26 September 2018 13:24 CEST | Version of Record | https://www.mdpi.com/2218-2004/6/4/55/pdf-vor |
| article xml uploaded. | 26 September 2018 13:24 CEST | Update | N/A |
| article xml file uploaded | 26 September 2018 13:24 CEST | Original file | N/A |
