| article html file updated | 8 February 2020 17:17 CET | Update | https://www.mdpi.com/1424-8247/10/4/77 |
| article html file updated | 27 September 2019 09:52 CEST | Update | - |
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| article html file updated | 2 January 2018 09:48 CET | Update | - |
| article html file updated | 27 September 2017 13:49 CEST | Original file | - |
| article xml uploaded. | 27 September 2017 13:48 CEST | Original file | https://www.mdpi.com/1424-8247/10/4/77/xml |
| article pdf uploaded. | 27 September 2017 13:48 CEST | Version of Record | https://www.mdpi.com/1424-8247/10/4/77/pdf |
