| article html file updated | 9 February 2020 07:11 CET | Update | https://www.mdpi.com/2227-9091/6/1/12 |
| article html file updated | 30 September 2019 22:34 CEST | Update | - |
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| article html file updated | 27 March 2018 15:07 CEST | Update | - |
| article html file updated | 9 March 2018 09:51 CET | Update | - |
| article xml uploaded. | 9 March 2018 09:49 CET | Update | https://www.mdpi.com/2227-9091/6/1/12/xml |
| article pdf uploaded. | 9 March 2018 09:49 CET | Updated version of record | https://www.mdpi.com/2227-9091/6/1/12/pdf |
| article html file updated | 26 February 2018 05:29 CET | Original file | - |
| article xml uploaded. | 26 February 2018 05:28 CET | Update | - |
| article xml uploaded. | 26 February 2018 05:28 CET | Update | - |
| article xml uploaded. | 26 February 2018 05:28 CET | Original file | - |
| article pdf uploaded. | 26 February 2018 05:28 CET | Updated version of record | https://www.mdpi.com/2227-9091/6/1/12/pdf-vor |
| article pdf uploaded. | 21 February 2018 17:14 CET | Version of Record | https://www.mdpi.com/2227-9091/6/1/12/pdf-vor |
