| article html file updated | 30 August 2025 00:27 CEST | Update | https://www.mdpi.com/2073-4441/9/2/136 |
| article html file updated | 16 July 2022 04:57 CEST | Update | N/A |
| article html file updated | 7 February 2020 23:47 CET | Update | N/A |
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| article html file updated | 22 February 2017 08:40 CET | Original file | N/A |
| article xml uploaded. | 22 February 2017 08:38 CET | Original file | https://www.mdpi.com/2073-4441/9/2/136/xml |
| article pdf uploaded. | 22 February 2017 08:38 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/136/pdf |
| article pdf uploaded. | 20 February 2017 10:23 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/136/pdf-vor |
