| article html file updated | 30 August 2025 02:04 CEST | Update | https://www.mdpi.com/2227-9067/5/1/3 |
| article html file updated | 16 July 2022 08:10 CEST | Update | N/A |
| article html file updated | 9 February 2020 01:09 CET | Update | N/A |
| article html file updated | 29 September 2019 11:24 CEST | Update | N/A |
| article html file updated | 2 May 2019 06:15 CEST | Update | N/A |
| article html file updated | 18 April 2019 04:12 CEST | Update | N/A |
| article html file updated | 28 March 2019 11:02 CET | Update | N/A |
| article html file updated | 1 February 2018 07:49 CET | Update | N/A |
| article html file updated | 25 December 2017 10:47 CET | Original file | N/A |
| article xml uploaded. | 25 December 2017 10:46 CET | Original file | https://www.mdpi.com/2227-9067/5/1/3/xml |
| article pdf uploaded. | 25 December 2017 10:46 CET | Version of Record | https://www.mdpi.com/2227-9067/5/1/3/pdf |
