| article html file updated | 8 February 2020 01:12 CET | Update | https://www.mdpi.com/2075-4701/7/3/90 |
| article html file updated | 23 September 2019 18:19 CEST | Update | - |
| article html file updated | 4 May 2019 07:18 CEST | Update | - |
| article html file updated | 28 March 2017 11:10 CEST | Update | - |
| article html file updated | 10 March 2017 10:43 CET | Update | - |
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| article xml uploaded. | 10 March 2017 10:41 CET | Original file | https://www.mdpi.com/2075-4701/7/3/90/xml |
| article pdf uploaded. | 10 March 2017 10:41 CET | Version of Record | https://www.mdpi.com/2075-4701/7/3/90/pdf |
