| article html file updated | 7 February 2020 10:44 CET | Update | https://www.mdpi.com/2313-0105/2/3/20 |
| article html file updated | 5 May 2019 11:53 CEST | Update | N/A |
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| article html file updated | 21 September 2016 13:33 CEST | Update | N/A |
| article xml uploaded. | 21 September 2016 13:32 CEST | Update | https://www.mdpi.com/2313-0105/2/3/20/xml |
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| article pdf uploaded. | 21 September 2016 13:32 CEST | Updated version of record | https://www.mdpi.com/2313-0105/2/3/20/pdf |
| article html file updated | 24 June 2016 13:19 CEST | Original file | N/A |
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