| article html file updated | 31 August 2025 09:03 CEST | Update | https://www.mdpi.com/1996-1073/13/2/421 |
| article html file updated | 20 July 2022 17:35 CEST | Update | N/A |
| article html file updated | 15 February 2020 03:06 CET | Update | N/A |
| article html file updated | 7 February 2020 15:19 CET | Update | N/A |
| article html file updated | 20 January 2020 10:54 CET | Update | N/A |
| article pdf uploaded. | 20 January 2020 10:50 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/2/421/pdf |
| article xml uploaded. | 20 January 2020 10:50 CET | Update | https://www.mdpi.com/1996-1073/13/2/421/xml |
| article xml file uploaded | 20 January 2020 10:50 CET | Update | N/A |
| article html file updated | 19 January 2020 07:23 CET | Update | N/A |
| article pdf uploaded. | 19 January 2020 07:21 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/2/421/pdf-vor |
| article xml uploaded. | 19 January 2020 07:21 CET | Update | N/A |
| article xml file uploaded | 19 January 2020 07:21 CET | Update | N/A |
| article html file updated | 16 January 2020 02:11 CET | Update | N/A |
| article pdf uploaded. | 16 January 2020 02:09 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/2/421/pdf-vor |
| article xml uploaded. | 16 January 2020 02:09 CET | Update | N/A |
| article xml file uploaded | 16 January 2020 02:09 CET | Update | N/A |
| article html file updated | 15 January 2020 14:03 CET | Original file | N/A |
| article supplementary file uploaded. | 15 January 2020 13:02 CET | - | https://www.mdpi.com/1996-1073/13/2/421#supplementary |
| article pdf uploaded. | 15 January 2020 13:02 CET | Version of Record | https://www.mdpi.com/1996-1073/13/2/421/pdf-vor |
| article xml uploaded. | 15 January 2020 13:02 CET | Update | N/A |
| article xml file uploaded | 15 January 2020 13:02 CET | Original file | N/A |