| article html file updated | 17 August 2026 03:19 CEST | Update | https://www.mdpi.com/2304-8158/9/2/212 |
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| article html file updated | 1 March 2020 04:57 CET | Original file | N/A |
| article pdf uploaded. | 1 March 2020 04:56 CET | Updated version of record | https://www.mdpi.com/2304-8158/9/2/212/pdf |
| article xml uploaded. | 1 March 2020 04:56 CET | Update | https://www.mdpi.com/2304-8158/9/2/212/xml |
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| article pdf uploaded. | 18 February 2020 16:15 CET | Updated version of record | https://www.mdpi.com/2304-8158/9/2/212/pdf-vor |
| article xml file uploaded | 18 February 2020 16:15 CET | Update | N/A |
| article pdf uploaded. | 18 February 2020 16:15 CET | Version of Record | https://www.mdpi.com/2304-8158/9/2/212/pdf-vor |
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