| article html file updated | 7 February 2020 07:16 CET | Update | https://www.mdpi.com/1420-3049/21/4/488 |
| article html file updated | 21 September 2019 15:10 CEST | Update | - |
| article html file updated | 5 May 2019 18:37 CEST | Update | - |
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| article html file updated | 17 September 2018 04:02 CEST | Update | - |
| article html file updated | 28 April 2016 11:53 CEST | Update | - |
| article html file updated | 14 April 2016 12:52 CEST | Original file | - |
| article xml uploaded. | 14 April 2016 12:51 CEST | Original file | https://www.mdpi.com/1420-3049/21/4/488/xml |
| article pdf uploaded. | 14 April 2016 12:51 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/488/pdf |
