| article html file updated | 9 February 2020 11:23 CET | Update | https://www.mdpi.com/2227-7390/6/4/48 |
| article html file updated | 2 October 2019 00:06 CEST | Update | - |
| article html file updated | 1 May 2019 08:28 CEST | Update | - |
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| article html file updated | 29 March 2019 10:05 CET | Update | - |
| article html file updated | 1 May 2018 05:20 CEST | Update | - |
| article html file updated | 27 March 2018 07:43 CEST | Original file | - |
| article xml uploaded. | 27 March 2018 07:42 CEST | Update | https://www.mdpi.com/2227-7390/6/4/48/xml |
| article pdf uploaded. | 27 March 2018 07:42 CEST | Version of Record | https://www.mdpi.com/2227-7390/6/4/48/pdf |
