| article html file updated | 29 August 2025 23:15 CEST | Update | https://www.mdpi.com/1996-1944/9/6/487 |
| article html file updated | 16 July 2022 02:39 CEST | Update | N/A |
| article html file updated | 7 February 2020 10:22 CET | Update | N/A |
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| article html file updated | 28 June 2016 12:27 CEST | Update | N/A |
| article html file updated | 17 June 2016 15:10 CEST | Original file | N/A |
| article xml uploaded. | 17 June 2016 15:09 CEST | Original file | https://www.mdpi.com/1996-1944/9/6/487/xml |
| article pdf uploaded. | 17 June 2016 15:09 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/487/pdf |
