| article html file updated | 14 August 2026 21:48 CEST | Update | https://www.mdpi.com/1996-1073/11/2/316 |
| article html file updated | 9 February 2020 05:15 CET | Update | N/A |
| article html file updated | 30 September 2019 11:00 CEST | Update | N/A |
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| article html file updated | 2 February 2018 06:28 CET | Original file | N/A |
| article xml uploaded. | 2 February 2018 06:27 CET | Update | https://www.mdpi.com/1996-1073/11/2/316/xml |
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| article pdf uploaded. | 2 February 2018 06:26 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/316/pdf |
