| article html file updated | 9 February 2020 07:19 CET | Update | https://www.mdpi.com/2077-0472/8/2/29 |
| article html file updated | 1 May 2019 16:59 CEST | Update | - |
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| article html file updated | 29 March 2019 00:46 CET | Update | - |
| article html file updated | 14 March 2018 08:36 CET | Update | - |
| article html file updated | 23 February 2018 03:16 CET | Original file | - |
| article xml uploaded. | 23 February 2018 03:15 CET | Original file | https://www.mdpi.com/2077-0472/8/2/29/xml |
| article pdf uploaded. | 23 February 2018 03:15 CET | Version of Record | https://www.mdpi.com/2077-0472/8/2/29/pdf |
