| article html file updated | 14 August 2026 13:33 CEST | Update | https://www.mdpi.com/2073-4360/9/4/128 |
| article html file updated | 8 February 2020 02:33 CET | Update | N/A |
| article html file updated | 24 September 2019 02:00 CEST | Update | N/A |
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| article html file updated | 31 March 2017 12:32 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2017 12:31 CEST | Original file | https://www.mdpi.com/2073-4360/9/4/128/xml |
| article pdf uploaded. | 31 March 2017 12:31 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/4/128/pdf |
| article pdf uploaded. | 30 March 2017 12:15 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/4/128/pdf-vor |
