| article html file updated | 10 February 2020 23:20 CET | Update | https://www.mdpi.com/2076-0752/7/4/87 |
| article html file updated | 28 April 2019 03:32 CEST | Update | - |
| article html file updated | 13 April 2019 23:39 CEST | Update | - |
| article html file updated | 2 April 2019 02:29 CEST | Update | - |
| article html file updated | 26 December 2018 08:59 CET | Update | - |
| article html file updated | 26 November 2018 12:44 CET | Original file | - |
| article pdf uploaded. | 26 November 2018 09:30 CET | Version of Record | https://www.mdpi.com/2076-0752/7/4/87/pdf |
| article xml uploaded. | 26 November 2018 09:30 CET | Update | https://www.mdpi.com/2076-0752/7/4/87/xml |
| article xml file uploaded | 26 November 2018 09:30 CET | Original file | - |
