| article html file updated | 29 August 2025 23:33 CEST | Update | https://www.mdpi.com/2227-9032/4/3/63 |
| article html file updated | 16 July 2022 03:12 CEST | Update | - |
| article html file updated | 7 February 2020 14:01 CET | Update | - |
| article html file updated | 21 September 2019 23:49 CEST | Update | - |
| article html file updated | 5 May 2019 05:51 CEST | Update | - |
| article html file updated | 27 March 2019 15:06 CET | Update | - |
| article html file updated | 29 September 2016 12:14 CEST | Update | - |
| article html file updated | 29 August 2016 10:17 CEST | Original file | - |
| article xml uploaded. | 29 August 2016 10:16 CEST | Original file | https://www.mdpi.com/2227-9032/4/3/63/xml |
| article pdf uploaded. | 29 August 2016 10:16 CEST | Version of Record | https://www.mdpi.com/2227-9032/4/3/63/pdf |