| article html file updated | 29 August 2025 20:56 CEST | Update | https://www.mdpi.com/2223-7747/3/1/70 |
| article html file updated | 20 August 2025 21:53 CEST | Update | - |
| article html file updated | 15 July 2022 22:50 CEST | Update | - |
| article html file updated | 6 February 2020 07:00 CET | Update | - |
| article html file updated | 7 May 2019 19:13 CEST | Update | - |
| article html file updated | 21 March 2019 11:42 CET | Update | - |
| article html file updated | 19 August 2015 19:02 CEST | Original file | - |
| article supplementary file uploaded. | 28 January 2014 10:05 CET | - | https://www.mdpi.com/2223-7747/3/1/70#supplementary |
| article pdf uploaded. | 27 January 2014 17:27 CET | Version of Record | https://www.mdpi.com/2223-7747/3/1/70/pdf |