| article html file updated | 12 February 2020 20:34 CET | Update | https://www.mdpi.com/2218-273X/9/6/239 |
| article html file updated | 22 October 2019 02:51 CEST | Update | - |
| article html file updated | 4 July 2019 17:37 CEST | Update | - |
| article html file updated | 21 June 2019 05:56 CEST | Original file | - |
| article pdf uploaded. | 21 June 2019 05:54 CEST | Updated version of record | https://www.mdpi.com/2218-273X/9/6/239/pdf |
| article xml uploaded. | 21 June 2019 05:54 CEST | Update | https://www.mdpi.com/2218-273X/9/6/239/xml |
| article xml file uploaded | 21 June 2019 05:54 CEST | Update | - |
| article supplementary file uploaded. | 18 June 2019 16:55 CEST | - | https://www.mdpi.com/2218-273X/9/6/239#supplementary |
| article pdf uploaded. | 18 June 2019 16:55 CEST | Version of Record | https://www.mdpi.com/2218-273X/9/6/239/pdf-vor |
| article xml file uploaded | 18 June 2019 16:55 CEST | Original file | - |