| article html file updated | 30 August 2025 00:55 CEST | Update | https://www.mdpi.com/2224-2708/6/3/15 |
| article html file updated | 16 July 2022 05:47 CEST | Update | - |
| article html file updated | 8 February 2020 13:14 CET | Update | - |
| article html file updated | 26 September 2019 11:21 CEST | Update | - |
| article html file updated | 3 May 2019 07:34 CEST | Update | - |
| article html file updated | 27 March 2019 20:11 CET | Update | - |
| article html file updated | 30 September 2017 15:29 CEST | Update | - |
| article html file updated | 17 August 2017 02:51 CEST | Update | - |
| article xml uploaded. | 17 August 2017 02:49 CEST | Update | https://www.mdpi.com/2224-2708/6/3/15/xml |
| article pdf uploaded. | 17 August 2017 02:49 CEST | Updated version of record | https://www.mdpi.com/2224-2708/6/3/15/pdf |
| article html file updated | 10 August 2017 11:57 CEST | Original file | - |
| article xml uploaded. | 10 August 2017 11:56 CEST | Original file | - |
| article pdf uploaded. | 10 August 2017 11:56 CEST | Version of Record | https://www.mdpi.com/2224-2708/6/3/15/pdf-vor |
