| article html file updated | 24 December 2025 14:14 CET | Update | https://www.mdpi.com/2227-7080/6/2/37 |
| article html file updated | 30 August 2025 03:08 CEST | Update | - |
| article html file updated | 21 August 2025 19:46 CEST | Update | - |
| article html file updated | 9 February 2020 10:51 CET | Update | - |
| article html file updated | 1 October 2019 21:08 CEST | Update | - |
| article html file updated | 1 May 2019 09:34 CEST | Update | - |
| article html file updated | 17 April 2019 09:28 CEST | Update | - |
| article html file updated | 29 March 2019 08:52 CET | Update | - |
| article html file updated | 26 June 2018 04:53 CEST | Update | - |
| article html file updated | 22 March 2018 15:19 CET | Original file | - |
| article xml uploaded. | 22 March 2018 15:18 CET | Original file | https://www.mdpi.com/2227-7080/6/2/37/xml |
| article pdf uploaded. | 22 March 2018 15:18 CET | Version of Record | https://www.mdpi.com/2227-7080/6/2/37/pdf |