| article html file updated | 9 February 2020 03:40 CET | Update | https://www.mdpi.com/2306-5354/5/1/7 |
| article html file updated | 30 September 2019 01:38 CEST | Update | - |
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| article html file updated | 26 March 2018 15:33 CEST | Update | - |
| article html file updated | 19 January 2018 14:21 CET | Original file | - |
| article xml uploaded. | 19 January 2018 14:20 CET | Update | https://www.mdpi.com/2306-5354/5/1/7/xml |
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| article pdf uploaded. | 19 January 2018 14:20 CET | Version of Record | https://www.mdpi.com/2306-5354/5/1/7/pdf |
