| article html file updated | 31 August 2025 12:02 CEST | Update | https://www.mdpi.com/2226-4787/8/1/21 |
| article html file updated | 20 July 2022 20:33 CEST | Update | N/A |
| article html file updated | 2 April 2020 12:21 CEST | Update | N/A |
| article html file updated | 7 March 2020 19:20 CET | Update | N/A |
| article html file updated | 7 March 2020 19:20 CET | Update | N/A |
| article pdf uploaded. | 7 March 2020 04:48 CET | Updated version of record | https://www.mdpi.com/2226-4787/8/1/21/pdf |
| article xml file uploaded | 7 March 2020 04:48 CET | Update | https://www.mdpi.com/2226-4787/8/1/21/xml |
| article xml file uploaded | 7 March 2020 04:47 CET | Update | N/A |
| article pdf uploaded. | 7 March 2020 04:47 CET | Updated version of record | https://www.mdpi.com/2226-4787/8/1/21/pdf-vor |
| article html file updated | 18 February 2020 16:15 CET | Update | N/A |
| article html file updated | 18 February 2020 16:14 CET | Original file | N/A |
| article pdf uploaded. | 18 February 2020 16:14 CET | Updated version of record | https://www.mdpi.com/2226-4787/8/1/21/pdf-vor |
| article xml uploaded. | 18 February 2020 16:14 CET | Update | N/A |
| article xml file uploaded | 18 February 2020 16:14 CET | Update | N/A |
| article xml file uploaded | 18 February 2020 16:13 CET | Update | N/A |
| article pdf uploaded. | 18 February 2020 16:13 CET | Version of Record | https://www.mdpi.com/2226-4787/8/1/21/pdf-vor |
| article xml uploaded. | 18 February 2020 16:13 CET | Original file | N/A |
