| article html file updated | 29 August 2025 23:33 CEST | Update | https://www.mdpi.com/2075-4418/6/3/31 |
| article html file updated | 16 July 2022 03:14 CEST | Update | - |
| article html file updated | 7 February 2020 14:10 CET | Update | - |
| article html file updated | 5 May 2019 05:35 CEST | Update | - |
| article html file updated | 27 March 2019 15:26 CET | Update | - |
| article html file updated | 28 September 2016 22:58 CEST | Update | - |
| article html file updated | 31 August 2016 13:52 CEST | Original file | - |
| article xml uploaded. | 31 August 2016 13:51 CEST | Original file | https://www.mdpi.com/2075-4418/6/3/31/xml |
| article pdf uploaded. | 31 August 2016 13:51 CEST | Version of Record | https://www.mdpi.com/2075-4418/6/3/31/pdf |
