| article html file updated | 31 August 2025 17:44 CEST | Update | https://www.mdpi.com/2226-4787/8/2/68 |
| article html file updated | 21 July 2022 02:12 CEST | Update | N/A |
| article html file updated | 7 July 2020 15:14 CEST | Update | N/A |
| article html file updated | 4 June 2020 02:52 CEST | Update | N/A |
| article pdf uploaded. | 4 June 2020 02:51 CEST | Updated version of record | https://www.mdpi.com/2226-4787/8/2/68/pdf |
| article xml uploaded. | 4 June 2020 02:51 CEST | Update | https://www.mdpi.com/2226-4787/8/2/68/xml |
| article xml file uploaded | 4 June 2020 02:51 CEST | Update | N/A |
| article html file updated | 17 April 2020 14:15 CEST | Original file | N/A |
| article supplementary file uploaded. | 17 April 2020 14:14 CEST | - | https://www.mdpi.com/2226-4787/8/2/68#supplementary |
| article pdf uploaded. | 17 April 2020 14:14 CEST | Version of Record | https://www.mdpi.com/2226-4787/8/2/68/pdf-vor |
| article xml file uploaded | 17 April 2020 14:14 CEST | Original file | N/A |
