| article html file updated | 30 August 2025 03:15 CEST | Update | https://www.mdpi.com/2227-9040/6/2/13 |
| article html file updated | 21 August 2025 19:50 CEST | Update | N/A |
| article html file updated | 16 July 2022 10:20 CEST | Update | N/A |
| article html file updated | 9 February 2020 11:48 CET | Update | N/A |
| article html file updated | 2 October 2019 02:35 CEST | Update | N/A |
| article html file updated | 1 May 2019 07:33 CEST | Update | N/A |
| article html file updated | 17 April 2019 07:32 CEST | Update | N/A |
| article html file updated | 29 March 2019 11:04 CET | Update | N/A |
| article html file updated | 27 June 2018 20:06 CEST | Update | N/A |
| article html file updated | 29 March 2018 15:34 CEST | Original file | N/A |
| article xml uploaded. | 29 March 2018 15:33 CEST | Update | https://www.mdpi.com/2227-9040/6/2/13/xml |
| article pdf uploaded. | 29 March 2018 15:33 CEST | Version of Record | https://www.mdpi.com/2227-9040/6/2/13/pdf |