| article html file updated | 9 February 2020 03:46 CET | Update | https://www.mdpi.com/1424-8247/11/1/8 |
| article html file updated | 30 September 2019 02:19 CEST | Update | - |
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| article html file updated | 26 March 2018 17:17 CEST | Update | - |
| article html file updated | 22 January 2018 13:21 CET | Original file | - |
| article xml uploaded. | 22 January 2018 13:19 CET | Update | https://www.mdpi.com/1424-8247/11/1/8/xml |
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| article pdf uploaded. | 22 January 2018 08:22 CET | Updated version of record | https://www.mdpi.com/1424-8247/11/1/8/pdf |
| article pdf uploaded. | 20 January 2018 11:03 CET | Version of Record | https://www.mdpi.com/1424-8247/11/1/8/pdf-vor |
