| article html file updated | 30 August 2025 07:30 CEST | Update | https://www.mdpi.com/2227-9040/6/4/45 |
| article html file updated | 17 July 2022 04:11 CEST | Update | N/A |
| article html file updated | 10 February 2020 14:14 CET | Update | N/A |
| article html file updated | 28 April 2019 23:16 CEST | Update | N/A |
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| article html file updated | 26 December 2018 09:25 CET | Update | N/A |
| article html file updated | 13 October 2018 12:42 CEST | Original file | N/A |
| article pdf uploaded. | 13 October 2018 12:42 CEST | Updated version of record | https://www.mdpi.com/2227-9040/6/4/45/pdf |
| article xml uploaded. | 13 October 2018 12:42 CEST | Update | https://www.mdpi.com/2227-9040/6/4/45/xml |
| article xml file uploaded | 13 October 2018 12:41 CEST | Update | N/A |
| article pdf uploaded. | 4 October 2018 15:59 CEST | Updated version of record | https://www.mdpi.com/2227-9040/6/4/45/pdf-vor |
| article pdf uploaded. | 4 October 2018 15:58 CEST | Version of Record | https://www.mdpi.com/2227-9040/6/4/45/pdf-vor |
| article xml file uploaded | 4 October 2018 15:58 CEST | Original file | N/A |
