| article html file updated | 7 February 2020 23:48 CET | Update | https://www.mdpi.com/2077-1444/8/2/28 |
| article html file updated | 23 September 2019 10:16 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:25 CEST | Update | N/A |
| article html file updated | 1 March 2017 11:11 CET | Update | N/A |
| article html file updated | 20 February 2017 12:23 CET | Update | N/A |
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| article html file updated | 20 February 2017 12:23 CET | Original file | N/A |
| article xml uploaded. | 20 February 2017 12:22 CET | Original file | https://www.mdpi.com/2077-1444/8/2/28/xml |
| article pdf uploaded. | 20 February 2017 12:22 CET | Version of Record | https://www.mdpi.com/2077-1444/8/2/28/pdf |
