| article html file updated | 9 February 2020 05:42 CET | Update | https://www.mdpi.com/2075-4701/8/2/110 |
| article html file updated | 30 September 2019 13:51 CEST | Update | - |
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| article html file updated | 28 March 2019 21:19 CET | Update | - |
| article html file updated | 6 February 2018 15:44 CET | Original file | - |
| article xml uploaded. | 6 February 2018 15:43 CET | Original file | https://www.mdpi.com/2075-4701/8/2/110/xml |
| article pdf uploaded. | 6 February 2018 15:43 CET | Version of Record | https://www.mdpi.com/2075-4701/8/2/110/pdf |
