| article html file updated | 9 February 2020 19:30 CET | Update | https://www.mdpi.com/1424-8247/11/2/54 |
| article html file updated | 4 October 2019 01:52 CEST | Update | - |
| article html file updated | 30 April 2019 15:37 CEST | Update | - |
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| article html file updated | 27 June 2018 13:25 CEST | Update | - |
| article html file updated | 30 May 2018 06:50 CEST | Original file | - |
| article pdf uploaded. | 30 May 2018 06:49 CEST | Updated version of record | https://www.mdpi.com/1424-8247/11/2/54/pdf |
| article xml uploaded. | 30 May 2018 06:49 CEST | Update | https://www.mdpi.com/1424-8247/11/2/54/xml |
| article xml file uploaded | 30 May 2018 06:49 CEST | Update | - |
| article pdf uploaded. | 29 May 2018 16:56 CEST | Updated version of record | https://www.mdpi.com/1424-8247/11/2/54/pdf-vor |
| article pdf uploaded. | 29 May 2018 16:55 CEST | Version of Record | https://www.mdpi.com/1424-8247/11/2/54/pdf-vor |
| article xml file uploaded | 29 May 2018 16:55 CEST | Original file | - |