| article html file updated | 7 February 2020 10:06 CET | Update | https://www.mdpi.com/1420-3049/21/6/769 |
| article html file updated | 21 September 2019 18:57 CEST | Update | N/A |
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| article html file updated | 29 June 2016 12:01 CEST | Update | N/A |
| article html file updated | 14 June 2016 22:44 CEST | Original file | N/A |
| article xml uploaded. | 13 June 2016 12:42 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/769/xml |
| article pdf uploaded. | 13 June 2016 12:42 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/769/pdf |
