| article html file updated | 9 February 2020 04:21 CET | Update | https://www.mdpi.com/2079-9292/7/2/13 |
| article html file updated | 30 September 2019 05:27 CEST | Update | N/A |
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| article html file updated | 14 March 2018 11:27 CET | Update | N/A |
| article html file updated | 25 January 2018 16:09 CET | Original file | N/A |
| article xml uploaded. | 25 January 2018 16:08 CET | Update | https://www.mdpi.com/2079-9292/7/2/13/xml |
| article xml uploaded. | 25 January 2018 16:08 CET | Update | N/A |
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| article xml uploaded. | 25 January 2018 16:08 CET | Original file | N/A |
| article pdf uploaded. | 25 January 2018 16:08 CET | Version of Record | https://www.mdpi.com/2079-9292/7/2/13/pdf |