| article html file updated | 8 February 2020 08:51 CET | Update | https://www.mdpi.com/1424-8247/10/2/57 |
| article html file updated | 25 September 2019 11:23 CEST | Update | - |
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| article xml uploaded. | 21 June 2017 15:31 CEST | Original file | https://www.mdpi.com/1424-8247/10/2/57/xml |
| article pdf uploaded. | 21 June 2017 15:31 CEST | Version of Record | https://www.mdpi.com/1424-8247/10/2/57/pdf |
