| article html file updated | 8 February 2020 13:02 CET | Update | https://www.mdpi.com/2306-5354/4/3/69 |
| article html file updated | 26 September 2019 10:15 CEST | Update | - |
| article html file updated | 3 May 2019 07:56 CEST | Update | - |
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| article html file updated | 30 September 2017 07:40 CEST | Update | - |
| article html file updated | 8 August 2017 09:44 CEST | Update | - |
| article xml uploaded. | 8 August 2017 09:43 CEST | Update | https://www.mdpi.com/2306-5354/4/3/69/xml |
| article html file updated | 8 August 2017 09:34 CEST | Original file | - |
| article pdf uploaded. | 8 August 2017 09:33 CEST | Version of Record | https://www.mdpi.com/2306-5354/4/3/69/pdf |
