| article html file updated | 9 February 2020 05:21 CET | Update | https://www.mdpi.com/2073-4344/8/2/59 |
| article html file updated | 30 September 2019 11:39 CEST | Update | - |
| article html file updated | 1 May 2019 21:22 CEST | Update | - |
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| article html file updated | 14 March 2018 08:43 CET | Update | - |
| article html file updated | 2 February 2018 14:37 CET | Original file | - |
| article xml uploaded. | 2 February 2018 14:36 CET | Original file | https://www.mdpi.com/2073-4344/8/2/59/xml |
| article pdf uploaded. | 2 February 2018 14:36 CET | Version of Record | https://www.mdpi.com/2073-4344/8/2/59/pdf |
