| article html file updated | 9 February 2020 08:53 CET | Update | https://www.mdpi.com/2227-7390/6/3/37 |
| article html file updated | 1 October 2019 08:18 CEST | Update | - |
| article html file updated | 1 May 2019 13:44 CEST | Update | - |
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| article html file updated | 26 March 2018 12:47 CEST | Update | - |
| article html file updated | 8 March 2018 13:55 CET | Update | - |
| article xml uploaded. | 8 March 2018 13:54 CET | Update | https://www.mdpi.com/2227-7390/6/3/37/xml |
| article pdf uploaded. | 8 March 2018 13:54 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/3/37/pdf |
| article html file updated | 7 March 2018 09:25 CET | Original file | - |
| article pdf uploaded. | 7 March 2018 09:24 CET | Version of Record | https://www.mdpi.com/2227-7390/6/3/37/pdf-vor |
