| article html file updated | 7 February 2020 06:11 CET | Update | https://www.mdpi.com/1420-3049/21/3/355 |
| article html file updated | 21 September 2019 13:35 CEST | Update | - |
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| article html file updated | 26 March 2019 23:57 CET | Update | - |
| article html file updated | 17 September 2018 03:27 CEST | Update | - |
| article html file updated | 31 March 2016 02:57 CEST | Original file | - |
| article xml uploaded. | 21 March 2016 12:01 CET | Original file | https://www.mdpi.com/1420-3049/21/3/355/xml |
| article pdf uploaded. | 21 March 2016 12:01 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/355/pdf |
