| article html file updated | 7 February 2020 05:56 CET | Update | https://www.mdpi.com/1420-3049/21/3/282 |
| article html file updated | 21 September 2019 13:09 CEST | Update | N/A |
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| article html file updated | 31 March 2016 02:48 CEST | Original file | N/A |
| article xml uploaded. | 15 March 2016 12:03 CET | Original file | https://www.mdpi.com/1420-3049/21/3/282/xml |
| article pdf uploaded. | 15 March 2016 12:03 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/282/pdf |