| article html file updated | 12 February 2020 23:40 CET | Update | https://www.mdpi.com/2226-471X/4/3/51 |
| article html file updated | 23 September 2019 07:07 CEST | Update | - |
| article pdf uploaded. | 23 September 2019 07:05 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/3/51/pdf |
| article xml uploaded. | 23 September 2019 07:05 CEST | Update | https://www.mdpi.com/2226-471X/4/3/51/xml |
| article xml file uploaded | 23 September 2019 07:05 CEST | Update | - |
| article html file updated | 2 July 2019 11:16 CEST | Original file | - |
| article pdf uploaded. | 2 July 2019 11:15 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/3/51/pdf-vor |
| article xml file uploaded | 2 July 2019 11:15 CEST | Original file | - |
