| article html file updated | 9 February 2020 06:36 CET | Update | https://www.mdpi.com/2227-7390/6/2/25 |
| article html file updated | 30 September 2019 19:08 CEST | Update | - |
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| article xml uploaded. | 24 February 2018 09:32 CET | Update | https://www.mdpi.com/2227-7390/6/2/25/xml |
| article pdf uploaded. | 24 February 2018 09:32 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/2/25/pdf |
| article html file updated | 23 February 2018 06:56 CET | Original file | - |
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| article pdf uploaded. | 23 February 2018 06:55 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/2/25/pdf-vor |
| article pdf uploaded. | 13 February 2018 19:41 CET | Updated version of record | https://www.mdpi.com/2227-7390/6/2/25/pdf-vor |
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