| article html file updated | 9 February 2020 10:41 CET | Update | https://www.mdpi.com/2313-0105/4/2/14 |
| article html file updated | 1 October 2019 20:10 CEST | Update | - |
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| article html file updated | 25 June 2018 11:47 CEST | Update | - |
| article html file updated | 22 March 2018 04:32 CET | Update | - |
| article xml uploaded. | 22 March 2018 04:31 CET | Update | https://www.mdpi.com/2313-0105/4/2/14/xml |
| article pdf uploaded. | 22 March 2018 04:31 CET | Updated version of record | https://www.mdpi.com/2313-0105/4/2/14/pdf |
| article html file updated | 21 March 2018 15:02 CET | Original file | - |
| article pdf uploaded. | 21 March 2018 15:00 CET | Version of Record | https://www.mdpi.com/2313-0105/4/2/14/pdf-vor |
