| article html file updated | 9 February 2020 06:25 CET | Update | https://www.mdpi.com/2227-9032/6/1/14 |
| article html file updated | 30 September 2019 18:05 CEST | Update | - |
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| article html file updated | 27 March 2018 14:36 CEST | Update | - |
| article html file updated | 13 February 2018 14:15 CET | Update | - |
| article xml uploaded. | 13 February 2018 14:14 CET | Update | https://www.mdpi.com/2227-9032/6/1/14/xml |
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| article pdf uploaded. | 13 February 2018 14:14 CET | Updated version of record | https://www.mdpi.com/2227-9032/6/1/14/pdf |
| article html file updated | 12 February 2018 11:13 CET | Original file | - |
| article xml uploaded. | 12 February 2018 11:12 CET | Update | - |
| article xml uploaded. | 12 February 2018 11:12 CET | Original file | - |
| article pdf uploaded. | 12 February 2018 11:12 CET | Version of Record | https://www.mdpi.com/2227-9032/6/1/14/pdf-vor |
