| article html file updated | 7 February 2020 07:27 CET | Update | https://www.mdpi.com/2073-4360/8/4/150 |
| article html file updated | 21 September 2019 15:26 CEST | Update | - |
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| article html file updated | 29 April 2016 10:00 CEST | Update | - |
| article html file updated | 19 April 2016 08:42 CEST | Original file | - |
| article xml uploaded. | 19 April 2016 08:40 CEST | Update | https://www.mdpi.com/2073-4360/8/4/150/xml |
| article pdf uploaded. | 19 April 2016 08:40 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/150/pdf |
