| article html file updated | 8 February 2020 08:28 CET | Update | https://www.mdpi.com/2227-7390/5/2/34 |
| article html file updated | 25 September 2019 09:24 CEST | Update | - |
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| article html file updated | 29 June 2017 11:36 CEST | Update | - |
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| article xml uploaded. | 17 June 2017 13:21 CEST | Original file | https://www.mdpi.com/2227-7390/5/2/34/xml |
| article pdf uploaded. | 17 June 2017 13:21 CEST | Version of Record | https://www.mdpi.com/2227-7390/5/2/34/pdf |
