| article html file updated | 11 February 2020 15:55 CET | Update | https://www.mdpi.com/2304-8158/8/2/71 |
| article html file updated | 14 October 2019 23:16 CEST | Update | - |
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| article html file updated | 14 February 2019 08:59 CET | Original file | - |
| article pdf uploaded. | 14 February 2019 08:58 CET | Version of Record | https://www.mdpi.com/2304-8158/8/2/71/pdf |
| article xml uploaded. | 14 February 2019 08:58 CET | Update | https://www.mdpi.com/2304-8158/8/2/71/xml |
| article xml file uploaded | 14 February 2019 08:58 CET | Original file | - |
