| article html file updated | 31 August 2025 01:31 CEST | Update | https://www.mdpi.com/2311-5521/4/3/172 |
| article html file updated | 21 August 2025 22:32 CEST | Update | N/A |
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| article html file updated | 13 February 2020 18:00 CET | Update | N/A |
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| article html file updated | 20 September 2019 10:17 CEST | Original file | N/A |
| article pdf uploaded. | 20 September 2019 10:06 CEST | Updated version of record | https://www.mdpi.com/2311-5521/4/3/172/pdf |
| article xml uploaded. | 20 September 2019 10:06 CEST | Update | https://www.mdpi.com/2311-5521/4/3/172/xml |
| article xml file uploaded | 20 September 2019 10:06 CEST | Update | N/A |
| article pdf uploaded. | 16 September 2019 15:40 CEST | Version of Record | https://www.mdpi.com/2311-5521/4/3/172/pdf-vor |
| article xml file uploaded | 16 September 2019 15:40 CEST | Original file | N/A |
