| article html file updated | 30 August 2025 00:30 CEST | Update | https://www.mdpi.com/2220-9964/6/3/63 |
| article html file updated | 16 July 2022 05:03 CEST | Update | - |
| article html file updated | 8 February 2020 00:17 CET | Update | - |
| article html file updated | 23 September 2019 12:59 CEST | Update | - |
| article html file updated | 4 May 2019 09:24 CEST | Update | - |
| article html file updated | 28 March 2017 11:02 CEST | Update | - |
| article html file updated | 2 March 2017 13:16 CET | Original file | - |
| article xml uploaded. | 2 March 2017 13:15 CET | Original file | https://www.mdpi.com/2220-9964/6/3/63/xml |
| article pdf uploaded. | 2 March 2017 13:15 CET | Updated version of record | https://www.mdpi.com/2220-9964/6/3/63/pdf |
| article pdf uploaded. | 25 February 2017 10:23 CET | Version of Record | https://www.mdpi.com/2220-9964/6/3/63/pdf-vor |
