| article html file updated | 31 August 2025 08:12 CEST | Update | https://www.mdpi.com/2223-7747/9/1/68 |
| article html file updated | 19 July 2022 20:07 CEST | Update | N/A |
| article html file updated | 15 February 2020 00:08 CET | Update | N/A |
| article html file updated | 5 February 2020 13:00 CET | Update | N/A |
| article html file updated | 10 January 2020 04:09 CET | Original file | N/A |
| article pdf uploaded. | 4 January 2020 09:36 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/1/68/pdf |
| article xml file uploaded | 4 January 2020 09:36 CET | Update | https://www.mdpi.com/2223-7747/9/1/68/xml |
| article supplementary file uploaded. | 4 January 2020 09:33 CET | - | https://www.mdpi.com/2223-7747/9/1/68#supplementary |
| article xml file uploaded | 4 January 2020 09:33 CET | Original file | N/A |
