| article html file updated | 13 August 2026 11:39 CEST | Update | https://www.mdpi.com/1999-4915/7/1/422 |
| article html file updated | 29 August 2025 21:28 CEST | Update | N/A |
| article html file updated | 15 July 2022 23:47 CEST | Update | N/A |
| article html file updated | 6 February 2020 15:21 CET | Update | N/A |
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| article html file updated | 21 August 2015 06:13 CEST | Update | N/A |
| article html file updated | 27 January 2015 07:39 CET | Original file | N/A |
| article xml file uploaded | 27 January 2015 07:39 CET | Original file | https://www.mdpi.com/1999-4915/7/1/422/xml |
| article pdf uploaded. | 22 January 2015 08:24 CET | Updated version of record | https://www.mdpi.com/1999-4915/7/1/422/pdf |
| article pdf uploaded. | 21 January 2015 12:17 CET | Version of Record | https://www.mdpi.com/1999-4915/7/1/422/pdf-vor |
