| article html file updated | 9 February 2020 05:53 CET | Update | https://www.mdpi.com/2073-4360/10/2/159 |
| article html file updated | 30 September 2019 14:58 CEST | Update | - |
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| article html file updated | 8 February 2018 23:01 CET | Update | - |
| article xml uploaded. | 8 February 2018 07:13 CET | Update | https://www.mdpi.com/2073-4360/10/2/159/xml |
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| article xml uploaded. | 8 February 2018 04:39 CET | Update | - |
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| article pdf uploaded. | 8 February 2018 04:39 CET | Version of Record | https://www.mdpi.com/2073-4360/10/2/159/pdf |
