| article html file updated | 29 August 2025 22:58 CEST | Update | https://www.mdpi.com/2227-7072/4/2/8 |
| article html file updated | 16 July 2022 02:11 CEST | Update | N/A |
| article html file updated | 7 February 2020 07:20 CET | Update | N/A |
| article html file updated | 5 May 2019 18:30 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:00 CET | Update | N/A |
| article html file updated | 1 July 2016 12:04 CEST | Update | N/A |
| article html file updated | 15 April 2016 15:22 CEST | Original file | N/A |
| article xml uploaded. | 15 April 2016 15:20 CEST | Original file | https://www.mdpi.com/2227-7072/4/2/8/xml |
| article pdf uploaded. | 15 April 2016 15:20 CEST | Version of Record | https://www.mdpi.com/2227-7072/4/2/8/pdf |
