| article html file updated | 7 February 2020 07:13 CET | Update | https://www.mdpi.com/2227-9717/4/2/11 |
| article html file updated | 21 September 2019 15:03 CEST | Update | N/A |
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| article html file updated | 27 March 2019 01:48 CET | Update | N/A |
| article html file updated | 4 July 2016 09:53 CEST | Update | N/A |
| article html file updated | 14 April 2016 09:42 CEST | Original file | N/A |
| article xml uploaded. | 14 April 2016 09:40 CEST | Original file | https://www.mdpi.com/2227-9717/4/2/11/xml |
| article pdf uploaded. | 14 April 2016 09:40 CEST | Version of Record | https://www.mdpi.com/2227-9717/4/2/11/pdf |
