| article html file updated | 8 February 2020 21:23 CET | Update | https://www.mdpi.com/2227-7390/5/4/63 |
| article html file updated | 28 September 2019 12:47 CEST | Update | - |
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| article html file updated | 23 November 2017 08:58 CET | Update | - |
| article xml uploaded. | 23 November 2017 08:57 CET | Update | https://www.mdpi.com/2227-7390/5/4/63/xml |
| article pdf uploaded. | 23 November 2017 08:57 CET | Updated version of record | https://www.mdpi.com/2227-7390/5/4/63/pdf |
| article html file updated | 18 November 2017 11:43 CET | Original file | - |
| article xml uploaded. | 18 November 2017 11:41 CET | Original file | - |
| article pdf uploaded. | 18 November 2017 11:41 CET | Updated version of record | https://www.mdpi.com/2227-7390/5/4/63/pdf-vor |
| article pdf uploaded. | 16 November 2017 12:18 CET | Version of Record | https://www.mdpi.com/2227-7390/5/4/63/pdf-vor |