| article html file updated | 29 August 2025 22:24 CEST | Update | https://www.mdpi.com/2077-0383/4/12/1952 |
| article html file updated | 16 July 2022 01:20 CEST | Update | N/A |
| article html file updated | 7 February 2020 01:29 CET | Update | N/A |
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| article html file updated | 26 March 2019 15:14 CET | Original file | N/A |
| article pdf uploaded. | 30 November 2015 13:47 CET | Version of Record | https://www.mdpi.com/2077-0383/4/12/1952/pdf |
| article xml uploaded. | 30 November 2015 13:47 CET | Original file | https://www.mdpi.com/2077-0383/4/12/1952/xml |
