| article html file updated | 7 February 2020 23:23 CET | Update | https://www.mdpi.com/2072-666X/8/2/56 |
| article html file updated | 23 September 2019 07:51 CEST | Update | N/A |
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| article html file updated | 15 October 2018 05:23 CEST | Update | N/A |
| article html file updated | 1 March 2017 07:58 CET | Update | N/A |
| article html file updated | 14 February 2017 12:40 CET | Original file | N/A |
| article xml uploaded. | 14 February 2017 12:39 CET | Original file | https://www.mdpi.com/2072-666X/8/2/56/xml |
| article pdf uploaded. | 14 February 2017 12:39 CET | Version of Record | https://www.mdpi.com/2072-666X/8/2/56/pdf |
