| article html file updated | 30 August 2025 03:24 CEST | Update | https://www.mdpi.com/2218-2004/6/2/18 |
| article html file updated | 21 August 2025 19:55 CEST | Update | N/A |
| article html file updated | 16 July 2022 10:35 CEST | Update | N/A |
| article html file updated | 9 February 2020 13:05 CET | Update | N/A |
| article html file updated | 2 October 2019 10:23 CEST | Update | N/A |
| article html file updated | 1 May 2019 04:56 CEST | Update | N/A |
| article html file updated | 17 April 2019 05:10 CEST | Update | N/A |
| article html file updated | 29 March 2019 14:00 CET | Update | N/A |
| article html file updated | 27 June 2018 11:40 CEST | Update | N/A |
| article html file updated | 11 April 2018 08:05 CEST | Update | N/A |
| article xml uploaded. | 11 April 2018 08:03 CEST | Update | https://www.mdpi.com/2218-2004/6/2/18/xml |
| article pdf uploaded. | 11 April 2018 08:03 CEST | Updated version of record | https://www.mdpi.com/2218-2004/6/2/18/pdf |
| article html file updated | 9 April 2018 13:52 CEST | Original file | N/A |
| article pdf uploaded. | 9 April 2018 13:51 CEST | Version of Record | https://www.mdpi.com/2218-2004/6/2/18/pdf-vor |