| article html file updated | 7 February 2020 07:07 CET | Update | https://www.mdpi.com/2073-4360/8/4/133 |
| article html file updated | 21 September 2019 14:55 CEST | Update | - |
| article html file updated | 5 May 2019 18:56 CEST | Update | - |
| article html file updated | 27 March 2019 01:35 CET | Update | - |
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| article html file updated | 29 April 2016 09:53 CEST | Update | - |
| article html file updated | 12 April 2016 08:13 CEST | Original file | - |
| article xml uploaded. | 12 April 2016 08:12 CEST | Update | https://www.mdpi.com/2073-4360/8/4/133/xml |
| article pdf uploaded. | 12 April 2016 08:12 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/133/pdf |
