| article html file updated | 29 August 2025 20:59 CEST | Update | https://www.mdpi.com/1999-4893/7/1/62 |
| article html file updated | 15 July 2022 22:55 CEST | Update | - |
| article html file updated | 6 February 2020 07:45 CET | Update | - |
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| article html file updated | 19 July 2017 11:30 CEST | Update | - |
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| article html file updated | 19 July 2017 11:27 CEST | Original file | - |
| article xml uploaded. | 19 July 2017 11:26 CEST | Original file | https://www.mdpi.com/1999-4893/7/1/62/xml |
| article pdf uploaded. | 11 March 2014 14:14 CET | Updated version of record | https://www.mdpi.com/1999-4893/7/1/62/pdf |
| article pdf uploaded. | 7 March 2014 11:02 CET | Version of Record | https://www.mdpi.com/1999-4893/7/1/62/pdf-vor |
