| article html file updated | 14 August 2026 20:26 CEST | Update | https://www.mdpi.com/1996-1944/11/1/20 |
| article html file updated | 9 February 2020 01:03 CET | Update | N/A |
| article html file updated | 29 September 2019 10:54 CEST | Update | N/A |
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| article html file updated | 1 February 2018 14:01 CET | Update | N/A |
| article html file updated | 26 December 2017 07:06 CET | Update | N/A |
| article xml uploaded. | 26 December 2017 07:04 CET | Update | https://www.mdpi.com/1996-1944/11/1/20/xml |
| article xml uploaded. | 26 December 2017 07:04 CET | Update | N/A |
| article pdf uploaded. | 26 December 2017 07:04 CET | Updated version of record | https://www.mdpi.com/1996-1944/11/1/20/pdf |
| article html file updated | 23 December 2017 13:34 CET | Original file | N/A |
| article xml uploaded. | 23 December 2017 13:33 CET | Update | N/A |
| article xml uploaded. | 23 December 2017 13:33 CET | Update | N/A |
| article xml uploaded. | 23 December 2017 13:33 CET | Original file | N/A |
| article pdf uploaded. | 23 December 2017 13:33 CET | Version of Record | https://www.mdpi.com/1996-1944/11/1/20/pdf-vor |
