| article html file updated | 9 February 2020 05:17 CET | Update | https://www.mdpi.com/1996-1073/11/2/324 |
| article html file updated | 30 September 2019 11:09 CEST | Update | - |
| article html file updated | 1 May 2019 21:32 CEST | Update | - |
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| article html file updated | 14 March 2018 15:44 CET | Update | - |
| article html file updated | 2 February 2018 09:07 CET | Original file | - |
| article xml uploaded. | 2 February 2018 09:06 CET | Update | https://www.mdpi.com/1996-1073/11/2/324/xml |
| article xml uploaded. | 2 February 2018 09:06 CET | Update | - |
| article xml uploaded. | 2 February 2018 09:06 CET | Original file | - |
| article pdf uploaded. | 2 February 2018 09:06 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/324/pdf |
