| article html file updated | 11 February 2020 11:46 CET | Update | https://www.mdpi.com/1424-8247/12/1/21 |
| article html file updated | 13 October 2019 23:55 CEST | Update | - |
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| article html file updated | 26 January 2019 12:13 CET | Original file | - |
| article pdf uploaded. | 26 January 2019 12:11 CET | Version of Record | https://www.mdpi.com/1424-8247/12/1/21/pdf |
| article xml uploaded. | 26 January 2019 12:11 CET | Update | https://www.mdpi.com/1424-8247/12/1/21/xml |
| article xml file uploaded | 26 January 2019 12:11 CET | Original file | - |
