| article html file updated | 30 August 2025 01:47 CEST | Update | https://www.mdpi.com/1422-0067/18/12/2521 |
| article html file updated | 16 July 2022 07:35 CEST | Update | N/A |
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| article html file updated | 27 November 2017 06:23 CET | Original file | N/A |
| article xml uploaded. | 27 November 2017 06:22 CET | Original file | https://www.mdpi.com/1422-0067/18/12/2521/xml |
| article pdf uploaded. | 27 November 2017 06:22 CET | Updated version of record | https://www.mdpi.com/1422-0067/18/12/2521/pdf |
| article pdf uploaded. | 24 November 2017 11:03 CET | Version of Record | https://www.mdpi.com/1422-0067/18/12/2521/pdf-vor |
