| article html file updated | 14 August 2026 19:42 CEST | Update | https://www.mdpi.com/1996-1073/10/12/1990 |
| article html file updated | 8 February 2020 22:49 CET | Update | N/A |
| article html file updated | 28 September 2019 21:48 CEST | Update | N/A |
| article html file updated | 2 May 2019 11:22 CEST | Update | N/A |
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| article html file updated | 1 December 2017 13:30 CET | Original file | N/A |
| article xml uploaded. | 1 December 2017 13:28 CET | Original file | https://www.mdpi.com/1996-1073/10/12/1990/xml |
| article pdf uploaded. | 1 December 2017 13:28 CET | Version of Record | https://www.mdpi.com/1996-1073/10/12/1990/pdf |
