| article html file updated | 30 August 2025 00:42 CEST | Update | https://www.mdpi.com/1422-0067/18/6/639 |
| article html file updated | 16 July 2022 05:25 CEST | Update | N/A |
| article html file updated | 8 February 2020 06:28 CET | Update | N/A |
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| article xml uploaded. | 24 May 2017 06:51 CEST | Update | https://www.mdpi.com/1422-0067/18/6/639/xml |
| article pdf uploaded. | 24 May 2017 06:51 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/6/639/pdf |
| article html file updated | 23 May 2017 15:08 CEST | Original file | N/A |
| article pdf uploaded. | 23 May 2017 15:07 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/6/639/pdf-vor |
