| article html file updated | 9 February 2020 09:32 CET | Update | https://www.mdpi.com/2077-0472/8/3/39 |
| article html file updated | 1 May 2019 12:23 CEST | Update | - |
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| article html file updated | 26 March 2018 12:18 CEST | Update | - |
| article html file updated | 12 March 2018 16:35 CET | Original file | - |
| article xml uploaded. | 12 March 2018 16:34 CET | Original file | https://www.mdpi.com/2077-0472/8/3/39/xml |
| article pdf uploaded. | 12 March 2018 16:34 CET | Version of Record | https://www.mdpi.com/2077-0472/8/3/39/pdf |
