| article html file updated | 9 February 2020 07:48 CET | Update | https://www.mdpi.com/1996-1073/11/3/498 |
| article html file updated | 1 October 2019 02:04 CEST | Update | - |
| article html file updated | 1 May 2019 15:59 CEST | Update | - |
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| article html file updated | 27 March 2018 05:23 CEST | Update | - |
| article html file updated | 27 February 2018 05:45 CET | Original file | - |
| article xml uploaded. | 27 February 2018 05:44 CET | Update | https://www.mdpi.com/1996-1073/11/3/498/xml |
| article xml uploaded. | 27 February 2018 05:44 CET | Update | - |
| article xml uploaded. | 27 February 2018 05:44 CET | Original file | - |
| article pdf uploaded. | 27 February 2018 05:44 CET | Version of Record | https://www.mdpi.com/1996-1073/11/3/498/pdf |
