| article html file updated | 8 February 2020 06:28 CET | Update | https://www.mdpi.com/2079-6439/5/2/20 |
| article html file updated | 24 September 2019 23:07 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:51 CEST | Update | N/A |
| article html file updated | 30 June 2017 09:08 CEST | Update | N/A |
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| article html file updated | 23 May 2017 13:09 CEST | Original file | N/A |
| article xml uploaded. | 23 May 2017 13:08 CEST | Original file | https://www.mdpi.com/2079-6439/5/2/20/xml |
| article pdf uploaded. | 23 May 2017 13:08 CEST | Version of Record | https://www.mdpi.com/2079-6439/5/2/20/pdf |
