| article html file updated | 8 February 2020 11:42 CET | Update | https://new.mdpi.com/2313-433X/3/3/31 |
| article html file updated | 26 September 2019 02:32 CEST | Update | - |
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| article xml uploaded. | 30 August 2017 02:42 CEST | Update | https://new.mdpi.com/2313-433X/3/3/31/xml |
| article pdf uploaded. | 30 August 2017 02:42 CEST | Updated version of record | https://new.mdpi.com/2313-433X/3/3/31/pdf |
| article html file updated | 21 July 2017 16:10 CEST | Update | - |
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