| article html file updated | 9 February 2020 05:51 CET | Update | https://www.mdpi.com/2227-9059/6/1/18 |
| article html file updated | 30 September 2019 14:44 CEST | Update | - |
| article html file updated | 1 May 2019 20:12 CEST | Update | - |
| article html file updated | 17 April 2019 19:17 CEST | Update | - |
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| article html file updated | 26 March 2018 15:57 CEST | Update | - |
| article html file updated | 7 February 2018 15:18 CET | Original file | - |
| article xml uploaded. | 7 February 2018 15:16 CET | Original file | https://www.mdpi.com/2227-9059/6/1/18/xml |
| article pdf uploaded. | 7 February 2018 15:16 CET | Version of Record | https://www.mdpi.com/2227-9059/6/1/18/pdf |
