| article html file updated | 8 February 2020 01:25 CET | Update | https://www.mdpi.com/2312-7481/3/1/15 |
| article html file updated | 23 September 2019 19:34 CEST | Update | - |
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| article html file updated | 29 March 2017 08:52 CEST | Update | - |
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| article xml uploaded. | 14 March 2017 15:20 CET | Original file | https://www.mdpi.com/2312-7481/3/1/15/xml |
| article pdf uploaded. | 14 March 2017 15:20 CET | Version of Record | https://www.mdpi.com/2312-7481/3/1/15/pdf |
