| article html file updated | 13 February 2020 02:32 CET | Update | https://www.mdpi.com/2226-471X/4/3/56 |
| article html file updated | 17 July 2019 04:28 CEST | Original file | - |
| article pdf uploaded. | 17 July 2019 04:27 CEST | Updated version of record | https://www.mdpi.com/2226-471X/4/3/56/pdf |
| article xml uploaded. | 17 July 2019 04:27 CEST | Update | https://www.mdpi.com/2226-471X/4/3/56/xml |
| article xml file uploaded | 17 July 2019 04:27 CEST | Update | - |
| article pdf uploaded. | 15 July 2019 15:42 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/3/56/pdf-vor |
| article xml file uploaded | 15 July 2019 15:42 CEST | Original file | - |
