| article html file updated | 14 February 2020 07:06 CET | Update | https://www.mdpi.com/2227-9032/7/4/136 |
| article html file updated | 30 December 2019 09:53 CET | Update | N/A |
| article html file updated | 6 November 2019 08:48 CET | Original file | N/A |
| article pdf uploaded. | 6 November 2019 08:47 CET | Version of Record | https://www.mdpi.com/2227-9032/7/4/136/pdf |
| article xml uploaded. | 6 November 2019 08:47 CET | Update | https://www.mdpi.com/2227-9032/7/4/136/xml |
| article xml file uploaded | 6 November 2019 08:47 CET | Original file | N/A |
